It's either they don't want to do their job, or there's too many spergs for them to handle.then mods sperg about the predictable outcome.
Honestly, the locals that frequent specific threads do a good job doing their own modding (i.e. calling the spergs faggots and whatnot). I think it's just certain users that spam the fuck out of the report button like its their lover that is the problem. Like they can't just scroll past certain posts or just put them on ignore all together, for some reason they HAVE to get the mods attention over every little petty shit.
It's one thing if the thread get's derailed for like 5+ pages, but it's another thing to use the mods as your personal shield against people you don't like.