Just pay attention to the instances the comments come from. This account is federated with .world and I am always seeing the most awful takes on here and it seems like most of the time it comes from users there.
I have another account not federated with .world, but it is with pretty much everything else. There’s fewer comments (rarely over 100) but it’s usually actual discussion and not revolving around anti-humanitarian practices.
It’s not a guarantee, but it seems very very high.