hefsys: I'm all for that sorta open-source feel. I can't see why pro mappers are scared someone'd rip their map off. If you're that good, then they can't make it any better. If you're that good then everyone'll know what your work is and will spot rip-offs.
I always release my RMFs. Then again, I haven't made any full-release maps except for the Trapped competition entry (winner
)
You could try the example maps section of the vault, maybe, or ask how an effect is achieved in the forums here (after thinking about it yourself first please).