Replying to Idea for eliminating negative members

So I'm sure most of you have noticed a significant rise in members on here that do nothing but try and pick fights and post controversial things just to get a rise out of people. Along with these members, are high post counts and low karma.

An idea came to me. What about anyone, who's karma has dropped below their post count gets some sort of ban. I would be in favor of a long or permanent ban. I know that there may be some exceptions to this, with members with 15,000 posts and a karma just below that....but for the most part, this would start to weed out some terrible members.

Also, I don't think this would even be an advertised thing. That way people wouldn't gang up on someone. Bad members would just disappear.

I don't know if this would really work, so don't try to hate too much. But after a couple years, the people that are here just for confrontation and hate mongering are really starting to get to me.