I'm specifically talking about the grooming and manipulation. That's precisely the sort of stuff sociopaths and psychopaths do as a matter of course. People who are just looking for a sexual "thrill" of sorts, by and large, don't engage in predatory behavior especially not of this disturbing sort.
Sure they do. Try putting a fake attractive female 18+ year old profile up on Instagram, you'll get bombarded by predators and dick pics there too. Just not _child_ predators. Many men act monstrously on the internet, but that doesn't make them psychopaths, just losers. Something about the distance makes that sort of behavior more palatable to them.
How many of them will try to "groom" you like we see in the article, though? I'd argue that there is a qualitative difference between that and "losers" just trying to engage someone who's also unambiguously of age.