I think the tag comma should be burninated.
Does it describe the contents, is it unambiguous?
In a sense, the contents have a comma somewhere in there. It is ambiguous because knowing there is a comma is wholly worthless to the actual question.
Is the concept described even on-topic for the site?
No, it is just a character.
Does the tag add any meaningful information to the post?
No.
Does it mean the same thing in all common contexts?
I guess it does as a list separator or decimal indicator in some localities. In this case I think we can safely ignore those commonalities.
This is the description:
Comma ',' is used to indicate a separation of elements within a list, such as an array, or parameters accepted by a function.
You have to go to the sixteenth top user to get someone with >3 answered questions.
There are 1337 questions asked with this tag, which is pretty leet. It has 9 watchers.
