Did you consider charging people for signing up and posts they made? It turns out that when people have to pay for extra posts past the first three a day they

Did you consider charging people for signing up and posts they made? It turns out that when people have to pay for extra posts past the first three a day they get a lot more circumspect in what they say. I set up a mailing list with that feature once upon a time and the quality of posts was astronomical.