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.
Questions regarding the use of different tags on the site
For suggesting that tags on the site be linked together as synonyms
The subject involves a specific question that was asked on the site, which should be linked for reference.
considered off-topic for the site
for questions about the scope of Aviation.SE (i.e. which questions are on-topic here.)
You have a question about the moderation on the site. Use the "moderators" tag if your question is directed at the moderators specifically.
You have a question regarding answers on the site
asking about questions on the site. If you are referencing a specific question, use the "specific-question" tag as well.
You have a question regarding the design and layout of this site.
Questions and discussions related to Moderator Elections
You have a question directed at the moderators of the site. Also see the "moderation" tag.
You have a question about questions that were closed on the site. Use the "specific-question" as well if you are asking about a specific question.
You have a question regarding the use of comments on the site.
asking about questions being marked as duplicates
Use for discussion/support posts related to retagging site questions and/or renaming tags
You have a question about a specific answer on the site, which should be linked for reference.
considered "low-quality" on the site, which may cause questions to be closed and answers to be deleted.
Questions and discussion related to the 2016 site moderator election.
Questions about this site's chat rooms, including the main chat room, The Hangar: https://chat.stackexchange.com/rooms/12036/the-hangar
You have a question about the users of the site
Any question asking how privileges work, what exactly they are or what does a certain privilege let you do.