I think it's more to do with the way people are told to RTFM than the fact that they've been told that in the first place. The attitude in clpm is more "God you're SO STUPID, WHY didn't you check manual X subsection Y paragraph 9.32?? I hate newbies like you! You're all morons!" rather than the attitude here, which seems to be much more helpful. The replies to mr_leisure's post are all basically telling him to RTFM, but also telling him where he should be looking, and mostly politely without any bitching about how he should have known where to look in the first place.

'Course, this is just how I see things. I stopped reading clpm ages ago and it might have changed, and of course there are times when replies here are not exactly as friendly as they could be. This post does not affect your statutory rights to tell people to RTFM in any way you choose.