The UI does not react to any changes made to the database for comments sections (i.e. upvotes/downvotes don't show up, comments get an infinitely spinning wheel but are posted normally, etc.,) This could lead to doubleposting, but mainly it's just not how the site is supposed to work.

Problem first encountered on !furry, if that helps

Dankojn pro auxskultontajn, Kamarada Felano

(Edit: Also happens with posts.)