Would it be illegal or against our rights to monitor 4chan activity like the gobernment does childporn sites and the likes??
I mean, stuff in that site is just twisted, they shouldn't find a voice or validation, they need help
I don't think it's illegal for them to monitor it, and I'm actually fairly certain they do, or at least respond to reports of illegal content on it. The site's anonymous to fellow posters, but certainly isn't to authorities. If you meant should they moderate the site though, fuck no.
Anyways, I suspect that a lot more threats on 4chan go responded to than get reported on.