Yeah, they could say such and such handles are spreading content disgusting in such and such ways, e.g. "users like Sam Altman are posting astronauts riding horses on the Moon". They don't have to be so specific that exact contents would be actually accessible, only plausible. The mental imagery would not have to be precisely imaginable to disgusting details.

It's odd that they see "tons of" things that they can't describe beyond it belongs in the category, as if, just as if, actually characterizing it beyond making trust me remarks would lead to formation of broad consensus against them rather than against the contents.