I posted a comment on this question. Arguably it could have been posted as an answer but the question was "protected" and I don't have enough fake internet points on this exchange site yet.
The comment received a handful of upvotes, as well as a reply which another user responded to, and then I responded later as well.
I came back to the question today to see if there were any other updates, and noticed that my comment was missing, as well as the first response. This leaves the second user's response to the first reply, and my response, neither of which make any sense with my original comment and the first response gone.
I didn't violate any rules that I'm aware of, and I see no notifications or messages about the comment deletion.
What happened here, and more importantly, how am I meant to learn what I did wrong when there is no notification of any type?