RE: Folks... Do your own DDzoobies, you can't prevent others from posting but you can screen out their posts so you don't view them.
You just use that downward Poynting arrow on the bottom of the annoying person's avatar. It will bring up a view options including "ignore." Once you click ignore, then you no longer have to endure that individual's negative ramblings.
Posing good questions on a BB is one thing, screaming that the sky is falling is another. Who needs the latter? Paid bashers, I guess....