Hey, what a coincidence! I just came back to this site to say the same! I loved the comment system and found it a great way to discuss analyses with other contributors. It generally made me feel more in tune with the community. I found this old thread about spam being the reason comments started getting disabled [1] and wonder if some progress has been made on this? It does sound like a hard problem, I wonder if some user-report-based-system could be another option (not to trivialize the technical challenge…)? Thanks for all the hard work on this site. It helped me learn a lot.
[1] Comments for edits don't show up in Community or a user's profile - #6 by chris