If it’s directly about Star Trek, you can post it here.

If it’s related to Star Trek, but not about Star Trek (for example, “these newly-discovered spiders were named after Star Trek actors,” or “this new medical device is kind of like a tricorder, if you squint”), c/Quarks would be the more appropriate community.

Memes go in !risa, fan theories go in !DaystromInstitute, and Star Trek related off-topic discussion go in !Quarks, otherwise, I don’t see why not.