Earlier quoted context omitted.
I didn't see any victim-blaming in that post - the victim is obviously due our full sympathy in each and every case. The question is what to do about it. The OP suggests that we might be able to form better communities, suggesting that the existence of communities in which this kind of thing does not happen proves that it must be possible. The GP appears to disagree, believing that we need technical and legal solutio…
Victim blaming/"they deserve it": "For the most part, high-profile "targets" from the troll's perspective are already known to the public anyway."
I think the author was simply pointing out that well-known people are well known, so their privacy is, almost by definition, limited anyway.