@magdastlucia after doing some investigating, we don’t have a record of that comment being saved, but we do have a record of the “Could be purple orchid mantis…” comment. Also, note that the down arrow on the “Hymenopus coronatus lives…” comment is gray and not black, denoting that it did not save. If you can replicate this comment-not-saving issue we’ll take a look.
Regarding curators’ ability to delete comments, I think that could be handled by a comment hiding rather than comment deletion functionality. Happy to write up a feature request for that, but I have a meeting to prep for so I can’t get to it for a bit. If someone else wants to add one in the meantime, go for it.