4. A lot of big lolcow crimes are fraud and defamation, but on a scale too low for the cops to bother with and by a person too insolvent for anyone they're shit-talking to bother with a lawsuit.
5. A number of cows have entered the legal system, and it's very slow. So they're potentially getting consequences, but only years down the line, after appeals and postponements and all that.
6. Unless you're SWATting someone, most cops don't really give a shit if an internet person tells them another internet person has committed a crime, especially because it's so easy to claim you were hacked/impersonated/joking. Unless you're British and a troon accuses you of misgendering them or you said something racist about a footballer, of course.
7. Similar to point 3, a lot of the crimes are committed within communities that want to handle it internally - usually furries and troons. Troons accuse each other of rape and abuse all the time, Greta and Nina used their suicide hotline charity as a personal piggybank for years, but ACAB so they basically get away with it.
8. If it comes from the Farms, it has no credibility. Often because the same criminals make sure to spread far and wide that we're full of lies and say no-no words which means we can't be trusted. If you think someone's a criminal who should be investigated, you're going to have to report them yourself - no one else seems to except in the most extreme cases - and of course we have a pretty big rule against that.