The purpose of the Tag Wiki is two-fold:
- So Users will know what a Tag is for
- So Users will know how to use a Tag
A Tag Wiki is Meta information. We should not try to sanitize them to just be wikis about the subject, they are wikis about the Tag which is a Meta object in and of itself.
Here's the official blog post on the subject, a relevant portion is:
Here’s a few words of advice on writing tag wiki excerpts:
- The excerpt is the elevator pitch for the tag
- Avoid generically defining the concept behind a tag, unless it is highly specialized.
- Concentrate on what a tag means to your community.
- Provide basic guidance on when to use the tag.
The most important reason to have tag usage info in the excerpt, it that the first three lines of the excerpt shows up in the Tag tooltip. This will give useful information to new users of the tag on when to use it.