At least their "work" on the forum can be limited by reporting the spam posts. I'm almost sure that they are not happy when they see their posts getting deleted. And we have to keep the forum clean (of course, between the limits on what's possible).
But I agree that too much drama goes on around that kind of accounts. On the other hand, it's not the same about all clickbait topics, no matter how many times the same thing was discussed or how useless it is?
So the reality is (as I see it)
* yes, it's too much drama around those accounts
* people seems to like drama, it gives them a reason to post (also keep in mind that most sig campaigns have a minimum quota, but it's not the only reason)
* it's known that the forum grows even with shitposts, as long as they are under a certain threshold

So yes, you're pretty much correct, but I don't think that anything is going to change.