Do not feed the trolls
If you ignore them, they'll go away.
Those nasty creatures who post "me too," "yea, I like that," and "what do you think" in 40 threads just to bump their own post count so that they can advertise their new fart app.
Reward them by NOT buying their apps!
Those annoying people who ask the same questions over and over and over, and if you make the mistake of answering one will then hound you in pm for more answers - all of which are probably in sticky threads!
And my newest favorite...the person(s) advertising the site where you can get free ebooks! Of course it's a scam. D'oh! You can't get copyrighted material for free legally. Period. End of discussion. Don't answer them, don't bait them - they're not there. They hit and run and wait for the mods to remove the threads...and then come back and post again.