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*'''IP “hopping” is always done to try and deceive ''' While this is a tactic sometimes used to evade blocks, it is not in and of itself indicitave of any intent to deceive and the contributor may not even be aware of it. Depending on where and how a user is contributing, their IP may change, sometimes between nearly every edit. The same thing happens with registered users, it simply doesn’t show up the same way because they have an account.
== Thành viên vô danh không thể trực tiếp làm được gì? ==
== What an unregistered user can't do by themselves (directly) ==
As a general rule, unregistered users can do everything that registered users can. Unregistered users may [[Help:Editing|edit articles]], [[Help:Talk page|participate in talk page discussions]], [[Wikipedia:How to contribute to Wikipedia guidance|contribute to policy proposals]] and do (almost) everything else that a registered user can do. There are some specific restrictions on what unregistered editors can '''directly''' do without the assistance of an admin or a registered-and-autoconfirmed editor.
* '''DirectlyTrực createtiếp articlestạo các bài viết:''' Unregistered users may not [[Help:Starting a new page|create articles]] with a single click. This restriction was placed on unregistered users in response to the [[Wikipedia Seigenthaler biography incident|Seigenthaler incident]]. Unregistered users may indirectly create an article. The most common way is to submit an article at [[Wikipedia:Articles for creation|Articles for creation]], so it can be created by any registered user. Though less common, it is also possible to create content for an article in a sandbox or user-talkpage, and then ask a registered user to create the actual (initially blank) article, after which the information can be copied over. Similarly, they are able to fully participate in deletion discussions, and have been [[Wikipedia:Village pump (policy)/Archive 64#IP's comments/votes being disregarded|since 2005]].
* '''DirectlyTrực edittiếp semi-protectedsửa pagesđổi các trang bị bán khoá:''' Some articles (particularly [[Wikipedia:Biographies of living persons|biographies of living persons]] or seasonal articles, such as ''[[Christmas]]'') attract [[Wikipedia:vandalism|vandalism]] or persistent breaches of policy from infrequent editors, be they registered or unregistered. To deal with this, articles can be placed under [[Wikipedia:Protection policy#Semi-protection|semi-protection]]. Semi-protection is not a means to prevent vandalism from unregistered users but from [[Wikipedia:User access levels#Autoconfirmed users|users registered for less than four days and with fewer than 10 edits]]. Since there is no way to determine the length of time during which an unregistered person has been contributing (time-of-first-edit cannot be used because many different people may be sharing the same IP address), semi-protection consequently affects unregistered users in addition to newly-registered accounts. This doesn't mean that unregistered users are equated with novice users or that they are considered less trustworthy. As with the indirect creation of articles, anybody can suggest changes on the article-talkpage, for addition to the article in mainspace by an editor who can bypass semi-protection.
* '''EditSửa fromđổi atừ blockedmột IPphạm addressvi hoặc địa chỉ IP orbị rangechặn:''' Registered users who persist in vandalism or [[Wikipedia:disruptive editing|disruptive editing]] can be [[Wikipedia:Blocking policy|blocked from editing]] by an [[Wikipedia:Administrators|administrator]]. Unregistered users who persist in vandalism or disruption can similarly be prevented from editing by the similar measure of blocking contributions from their [[IP address|IP address or range]]. If you see a block notice on an unregistered user's user page, remember that the person contributing today from that IP address may not be the same person who received the block. (Also, sometimes accidents happen, and the block was by mistake.) Similarly, innocent users (registered and unregistered) may be blocked from contributing because of a block placed on an IP address or range.
* '''DirectlyTrực uploadtiếp imagestải orlên renamehình pagesảnh hoặc đổi tên trang:''' Like semi-protection, [[Wikipedia:User access levels#Autoconfirmed users|newly-registered users]], and consequently unregistered users too, may not upload new files or rename articles directly. Unregistered users and users not yet confirmed may submit file upload requests [[Wikipedia:Files for upload|here]] or request moves [[Wikipedia:Requested moves|here]]. Outside official channels, they can also just ask someone they are already working with, or already familiar with, to perform the task. [[WP:TEAHOUSE]] and [[WP:HELPDESK]] are also useful places to get speedy help.
* '''Directly use admin-tools, or become an admin-level contributor:''' This restriction applies in practice to 98% of registered users (as of 2013), as well as to 100% of unregistered users. Wikipedia withholds certain "buttons" from most users. These "buttons" are, for example, the ability to [[Wikipedia:Deletion policy|delete an article]] or [[Wikipedia:Blocking policy|block a user]]. In nearly all cases, it is the Wikipedia community that [[Wikipedia:Requests for adminship|decides who may have access to these "buttons"]]. The community decides whether a user can have these privileges based on evidence that they are trustworthy and exercise good judgement. Since many people may contribute from the same IP address, if these rights were given to an unregistered user there would be no way to guarantee that only that user would have access to the "buttons". For the same reason, unregistered users cannot be elected to a [[Wikipedia:Wikipedia Committees|committee]], such as the [[Wikipedia:Arbitration Committee|arbitration committee]]. As with the other categories, unregistered editors can always ask for assistance, from the nearest admin (or even the nearest [[Wikipedia:Arbitration Committee|ArbCom]] member). There are tens of thousands of active registered editors, but only a few hundred active admins (as of 2013 there were 80k of the former and 600 of the latter), so this restriction is not at all specific to unregistered editors.
* '''VoteBỏ phiếu''' as distinct from the essential '''comment''': On the [[Wikipedia:Polling is not a substitute for discussion|few occasions]] when decisions (usually not content-related) on Wikipedia are [[Wikipedia:Wikipedia is not a democracy|decided by democracy]] (e.g. [[Wikipedia:Requests for adminship|request for adminship]], elections to the [[Wikipedia:Arbitration Committee|arbitration committee]]) unregistered users may not vote; they may participate in the discussions. Rather than being evidence of the untrustworthiness of unregistered users, this is in fact because of the untrustworthiness of registered users. If unregistered users were allowed to vote, disreputable registered users could log out of their accounts to vote twice (or, with use of an anonymizing [[Proxy server|proxy service]], tens or hundreds of times). See also [[WP:SOCKPUPPET]], which is a type of abuse where one human registers more than one username; detecting their underlying IP addresses often reveals such schemes.
As well as these restrictions, there are some [[Wikipedia:Why create an account?|specific advantages]] to becoming a registered user, such as watchlists. There are also some other, lesser used, limitations placed on [[Wikipedia:User access levels#Autoconfirmed users|newly-registered users]] that consequently affect unregistered users.
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