I read and post a bit on the OBIEE and OBIA OTN forums. The noise ratio isn’t too bad, but a few things really get my goat:
Not responding to answers!
If I’ve gone out of my way to help, or try to help, at least have the courtesy to acknowledge it, and ideally mark as Helpful or Correct as appropriate.
Even a simple “thanks.” would do. It’s just good manners.