I think this would be an enormous mistake. Its bad enough that we take pot shots at each other and the threads spin off into ego battles, leaving the original issue in the dust. But if you do this, then you virtually guarantee that even remotely controversial thread will quickly devolve into name-calling and complaints that people are being targeted or unfairly criticized, etc., followed by people defending their criticisms, and on and on and on.
I just think you will really regret it if you do it.