I think if people say "competitive" they are also not looking for advice from people who may be used to pulling a fast one on other owners. Example:
Poster: I am in a 12-man competitive league that starts 2 RB. I have Deuce McAllister and Marcel Shipp, but would like to upgrade at this position. I have reasonable depth at QB, WR, blah blah, what would you suggest?
Reply: I see you have Eddie Kennison. If you trade him for Ricky Williams or Jamal Lewis, your problems are over!!!
Me (on the inside): Gimme a break, will ya?