Question: This is more a suggestion than a question, though answers and comments are welcome.

In question [What should the tag wikis contain?](https://cstheory.meta.stackexchange.com/questions/341/what-should-the-tag-wikis-contain), Robin suggests the preferred content for tag wikis. Unfortunately, most tags I checked did not have any wiki.

I added several tag wikis, and felt like suggesting this to other colleagues as well. I believe at least the top-20 tags must have wikis.

Answer: 
We can use some help for setting-up tag-wikis:

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> **We need your help to make the page 1 and page 2 tags great** — so please pitch in and contribute a tag wiki excerpt or edit a tag wiki excerpt to make it better. To invite editing, there’s a small edit link that will dynamically appear as you mouse over the tags page if you have enough reputation.
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> Here’s a few words of advice on writing tag wiki excerpts:
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> 1. **The excerpt is the elevator pitch for the tag.** You only have ~500 plain text characters for the excerpt, so don’t feel obligated to cover everything in it! Save that for the 30,000+ character Markdown tag wiki. The excerpt should define the shared quality of questions containing this tag — boiled down to a few short sentences.
> 2. **Avoid generically defining the concept behind a tag, unless it is highly specialized.** The “email” tag, for example, does not need to explain what email is. I think we can safely assume most internet users know what email is; there’s no value in a boilerplate explanation of email to anyone.
> 3. **Concentrate on what a tag means to your community.** For “email” on Server Fault, mention the server aspects of email including POP3, SMTP, IMAP, and server software. For “email” on Super User, mention desktop email clients and explicitly exclude webmail, as that would be more appropriate for webapps.stackexchange.com.
> 4. **Provide basic guidance on when to use the tag.** In other words, what kinds of questions should have this tag? Tags only exist as ways of organizing questions, so if we don’t provide proper guidance on which questions need this tag, they won’t get tagged at all, rendering the tag excerpt moot. Think of it as a sales pitch: in a room full of tags screaming “pick me!”, what would convince a question asker to select your tag?
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<http://blog.stackoverflow.com/2011/03/redesigned-tags-page/>
There are restrictions on editing tag-wikis. For example, I want to add the following to [`[tag-removed]`](https://cstheory.stackexchange.com/questions/tagged/tag-removed) but I can't, and I don't think anyone other than moderators can edit it since there are not really answered:

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> This tag should only be used when there are no other appropriate tags. If you remove tags from a question and can't find any suitable tag to add, use [tag-removed]. The tag should not be combined with other tags. This tag is not intended to be used for closed question, please don't replace the tags on a closed question if the current tags assigned to the question are appropriate. (Please try to replace tags with [tag-removed] only when the question is already on the front page.) 
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We may also want to add something like this: 
(this is a trick used by moderators on MO to avoid bumping up questions when moderators get rid of tags which shouldn't be tags in the first place, for example meta-tags like: [math], [cs], [general], [advanced], ...)

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> [tag-removed] is also used by moderators to silently get rid of a tag which should not exists by merging the tag with [tag-removed]. Please remove [tag-removed] when it is combined with other tags (try to be gentle and avoid removing [tag-removed] aggressively from questions which are not on the front page.)
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