http://meta.stackoverflow.com/questions/86997/what-can-i-do-when-getting-sorry-we-are-no-longer-accepting-questions-answers/86998#86998

当你被禁止提问时怎么办?
正如在每个页面上能够看到的关于本网站的说明一样,
Stack Exchange是一个问答类的网站,而非帮助论坛.
他的意思就是说网站上的这些问题能够帮助后来访问本
网站的用户.为了加强这个制度的体现,防止那些一味只知道
索取的提问者,低质量的问题和答案会被锁定.这些内容包括:

• 那些抱怨条条框框的问句的人
• 那些不自己研究的人
• 那些不曾说明自己尝试过什么的人

一个自动的过滤规则会用来锁定一些问题和答案来自于特定的IP地址
或者那些常年不活跃的账号.
对于这个规则,为了防止绕道的人存在,他是一个保密的.
但是他是建立在大多人的赞成的情况下的.
一旦你回答了很多无聊的答案或者提过无聊的问题之后,你的账号会被锁定.
你就会得到类似这样的内容:

Sorry, we are no longer accepting questions from this account. See http://goo.gl/C1Kwu to learn more.

删除的问题也算吗?
是的,删除的问题(30内删除的)和删除的回答都会被算到你的账号中去.
存在删除的提问不是问题,但是如果很大一部分的问题是你自己活着社区删除的
他们可能意味着不适合这个网站.提糟糕的问题会浪费读问题的用户的时间,编辑的时间同样会浪费.
甚至回复的时间.而且删除这个提问会对过滤规则产生影响.

注意一个账户可能会有很多的删除提问,包括自动删除的旧的分数比较的问题.这些问题都是只能由管理员看见的.

禁止问答是类似挂起吗?
不是的,挂起值手动临时的惩罚措施.这个期间不能够问问题,或者回答问题.其他的权限正常使用,包括评论投票.

禁止是强制自动执行.

How long do I have to wait before I can post again? What can I do to release the ban? How can I reactivate my account?

Automatic bans never expire or “time out.” This means that you cannot simply wait for a certain amount of time: if you do not take action, you will never be allowed to post again. The only way for the ban to be lifted is by contributing positively to the site in other ways.
自动的禁止是不会自动过期的,你不要瞎等了.如果你什么都不做,你将会被永远禁止提问,唯一能够做的就是通过其他的方式贡献
Before you do anything else, fix your existing posts! As noted above, down-votes cast by the rest of the community factor into the ban – so the single best thing you can do to get it lifted is to address any objections raised by others. Were your past questions unclear? Did they fail to show any effort on your part? Poorly worded, titled, formatted, and overly long or short? Then fix them!

If you are banned from asking questions, then writing a few quality answers that get upvoted might enable you to ask questions again. But as the internals of the filter are secret, there is no way to know for sure.

If you really, really think the ban is an error, then email the team directly using the “contact us” link provided at the bottom of every page. But note that reactivation of banned accounts is not a high priority.