Site was always pretty much left alone beside serious issues like hardware failure that wiped most of the content from 2016; my problem with being unable to load and post within a particular group was never resolved (I was a member and confirmed to never being on blacklist; obviously the group always loaded within private mode without issues).
The simplicity of account registration, the possibility of creating sub-profiles within main one (similar to tumblr) were probably the sources of spambot thriving on soup. While we had post report and flagging features, only ignoring was the best way of getting rid of all that trash.