However, certain ideas simply don't work, one of them is countering over-poweredness with more over-poweredness. Since, eventually, you'll end up with The Unstoppable Force clashing against The Unmovable Object, and then you just end up with the galaxy imploding and everyone text-messaging you a bunch of frowny-face emoticons.
Um...I thought this was apparent, but if not then I was joking about that. I wasn't seriously proposing that.
Not telling people what you've prepared doesn't work either, since then you can just pull shit outta your ass - litteraly. "Oh, you're attacking me with your beam-sword? Well too bad! I prepared a mirror trap that reflects all beam attacks! Oh? You dodged it? Well done, too bad I had pit-falls dug where you dodged to!" and so on and on it goes, with both sides having "secretly" prepared "hidden counter-measures" for all eternity
Well, that was the reason for what I said a couple of posts above:
If your character is doing something secretive like setting up traps, you're more than allowed to post for it in the RP, but it's recommended you tell the GM privately instead so everybody doesn't know, as it could influence their decisions whether they mean to metagame or not. That said, don't post for them doing one thing and then PMing them that they're actually doing another when the two are mutually exclusive. This can basically be translated to "You don't have to say the whole truth in your posts, but you can't lie,"
That way, traps are set up viably, no meta goes on in-RP, etc, of course there are other equally viable methods.
If we do go
Ai Supesu, then there are still ways to set up traps, but that depends on the mechanics.
As to Bounded Fields and RMs...well, I've been rolling a few ideas around. I'll need to see the decided system before I pronounce those as viable vs inviable.