The same advice could be given here that I gave on a couple of "what happened to?" posts.
When they found out what happened they just kept on harping on the subject. I posted that if the members would just stop replying to the post, it would eventually fade away never to be seen again.
Well! Guess what? The 2 posts I am referring to have faded away.
The same can hold true to the ones "doing a good job of making this forum less enjoyable". Ignore 'em and go on with what the subject matter was originally about. But, there are some who can't let it be. They have to try and outdo the perpetrator. Thus, making them no better than the one who started it.
As far as a fee goes? I think you might find that a lot more than just the so called "trouble makers" would drop out of sight. A whole lot more!!!!