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.
Users may only earn a certain amount of reputation each day, with the exception of reputation coming from accepted answers and bounties.
Indicates that the feature request will not be implemented, or that a bug will not be fixed at present time.
Questions about suspected user spam, the Spam Flag or combating spam as a community
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a text which is hidden until you move cursor above it. It might be useful when for separating full solution from a hint.
Ceiling and floor of the number of characters you can enter into various slots
the act of temporarily blocking the account of a specific user. However, circumstances regarding a particular suspension are private matters between the user and the moderators a…
From Oxford Dictionaries, paraphrasing to suit the needs of *this site*: "A website or web page on which (in our case) M.SE records opinions, links to other sites, etc. on a regular basis".
Per-site lists of tags that cannot be created.
General questions about users and user accounts.
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to new users and fosters and community spirit among existing ones.
a user-generated list of related questions shown when viewing a question. Its content comes from questions that users have linked in the question, their answers, or i…
the percentage of questions for which the user has accepted an answer.
a process which helps cleaning the site by deleting some questions. Criteria for auto-deletion are based on low score and age of the question.
for questions involving the 'Front Page' - the list of top questions with activity
Locking a question prevents answering, editing, commenting, voting, closing, and reopening. Answers must be locked separately and may still be voted upon. Only diamond moderators may lock posts.
fetched and displayed on the Stack Exchange network. This is not for general Gravatar support inquiries.
When your question gets the community to have a vote
websites copying content from other websites. Use this tag for questions related to sites copying contents from math.SE. (In particular, if this is done without proper attribution.)
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For questions regarding the badge tracking functionality in the user profile area.
For questions related to defining own macros (using \newcommand and similar commands) in MathJax.
for questions about the CSS styles used in Marthematics SE.
The undisclosed algorithm through which all new questions are passed to determine if they can be posted on SE.
For every user, the reputation from the main site is shown on meta. However scores of the posts on meta are still stored, so it is possible to obtain reputation-based badges on meta (mortarboard, tag …
For issues with how Stack Exchange sites look or work that are specific to Firefox.