Low hanging fruit. There’s not that many actual pedophiles out there, and the ones that exist are usually pretty cautious (otherwise they’d have been caught already).
But technically an 18 year old wanting to have sex with a 16 year old…
I don’t know anything about this guy, but the fact that he was accusing teenagers of being pedophiles suggests he was just trying to get fame and attention by capitalizing on the current “pedophiles everywhere” moral panic.