The comments were removed on January 1, 2020. Then, on February 4, the comments were restored but in an archived state, meaning you can view previous comments but can't add new ones. Not that good of a solution if you ask me, but that's just what happened.
Alright. The comments were removed because of some negative comments involving Shep's biological sex, spam involving Steven having a neck, and others. They were also removed to push the discord server and forums as new means of discussion.