Browse around, 100 posts may not be the best answer, but right now you have to keep the Newbies out of regular discussions or hell would break loose.
I see the problem. But I don't see how this is the solution. There are people like Synaptic, replying to every post with obscenities. And people like me who read and don't say anything unless they think it will actually contribute to the discussion. Which behaviour you want to encourage?
PLEASE PM one of the mods if you see the same user repeatedly doing something like this. We are massively understaffed and do what we can, but often things like this will slip through.
Also, the current requirements are working out well. They won't be changed.