The complaint seems to be that users of that site are harmed by having their IDs taken over and by being offered very inaccurate answers. It's an abuse of trust. But that's just one very narrow perspective.

Let's imagine that a tapeworm is living inside your body. You might complain. But I'd see nothing wrong. Only users with tapeworms, who also objected to being parasitized, would have grounds for complaint. (Keep in mind, many of them might not have any symptoms yet.) So, with no reason to complain, maybe the rest of us should conclude that tapeworms are beneficial and everybody should get one.

So I think some commenters here are saying, no, tapeworms sound like a health problem. But they're revealing more about themselves than about their understanding of the big picture. To me, no judgement, but those commenters come across like human beings. If I'm a worm, these "health problem" complaints are the problem. The solution is for people to keep quiet.