A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.
For questions about the bounty system, which allows users to spend some of their reputation in order to draw more attention to a question.
Regular posting of some closed questions at Workplace meta for community review.
Requests to have a tag "burninated" (or deleted) from the system. Use for both requesting a removal, as well as discussing if a tag needs removal.
The Stack Exchange Data Explorer (SEDE), located at data.stackexchange.com, allows you to create and run queries against copies of the databases of popular Stack Exchange sites to investigate trends o…