This wiki post outlines how to use tags on community.lsst.org.
Categories vs Tags
This forum uses both categories and tags to organize posts.
We use categories to broadly organize and set the tone for different types of content in the forum. You can see a list of categories on its index page (look for a ‘Categories’ button in the navigation bar or site menu). Read the descriptions of each category before posting to see where your discussion belongs. A moderator might recategorize your post if necessary. If you think a new category is needed, write a proposal in Meta.
Tags provide fine-grained classification of content. Tags can be applied across categories, and each topic can have multiple tags. For example, an ‘astrometry’ tag might be applied to a topic in Announcements explaining a new astrometry API, and might also be applied to a topic in the Q&A category asking for help in using LSST’s astrometry code.
What tags exist?
The Tags index page has a listing of all tags. Various parts of the forum UI also allow you to filter by tag.
Adding tags to topics
The original poster can tag a topic using the text box below the main content window. Tags will auto-complete. Remember that each post can have multiple tags. Topics don’t need to have tags.
Creating new tags
If you’re a Level 3 or above user, or a moderator/admin, you can create a new tag on-the-fly by entering it in a post’s tag box. Make sure the tag isn’t redundant in the existing taxonomy.
If you don’t have permissions to create a new tag, you can write a proposal for one in the Meta category.
(I’m an eternal optimist, plus tag autocomplete/autosuggest helps in this a lot!). If things become unmanageable, a restriction could be introduced later.