Sure. Trolling is kind of used as a catch all term. There’s minor trolling where someone’s just kind of being obnoxious a wink and a nudge. In my opinion, stuff like that (Frink) works here because of the small size of the community, though it does mean he’ll rub off the wrong way on new people, and a few older members. I’m sure many disagree, but they can probably see the difference between that and what Wario does.
Other times people just use the word ‘trolling’ when they can’t possibly fathom that the person they’re arguing with might be speaking genuinely. Or they’re just a bit unrelenting about their point. Sometimes it’s just using the word to discredit people you disagree with, especially in political discussions.
And then there are people like Wario. At this point, if it was directed at an individual it would probably be considered harassment. It’s not really, though, so I’m not sure what to call it besides excessive and pathetic trolling.
I agree with you that his life probably is very unfortunate. I disagree about caring whatsoever about it. People have much harder lives than him, surely, and manage to not to be totally shitty. Alternatively, he could quite likely just be a bored kid with nothing to do, especially as school as out at the moment.