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 relating to stack exchange tags. Tags are used to categorize questions so that it's easier to search or browse through all the questions on the website.
Questions related to editing questions, answers and tag wikis, etc.
Questions about how to promote the Blender Stack Exchange website on social media and elsewhere.
Questions about the Blender Stack Exchange Meta website.