Doesn't seem like it's the majority of users or people on the instance. From nbats on disc:
I just need more proof they're actually super malicious because most of the stuff linked was downvoted on exploding. in other words yeah shitheads exist there, but they don't seem to be the majority really
EDIT: after some further discussion we've decided to defederate. we'll be making a post sometime soon with a defederation policy.
I also want to mention this happened at 2 or 3 AM EST, which only had 2 admins on, me and the hoster. I should've made a post, but given the severity, lack of info, and lack of staff members, we both decided to shut it down immediately until it was patched. I personally apologize for the downtime but I hope it's understandable why we did it this way. In case something like this happens again, I'll post it in the FMHY Divolt server.