BUGamer's FTB Server
There's no banned items, grief protection via zones is available, I think default permissions are set up right so anyone joining should have immediate build capabilities if not leave your IGN (In-game Name) in a comment below and I'll whitelist you. Other than that it will be mostly un-moderated (unless someones willing to help moderate!) you're free to blow the shit out of (or preferably build...) whatever isn't zone protected.
If you've never played Feed The Beast before and want to find out more have a read: http://feed-the-beast.com/
Server Address: bugamers.no-ip.org
If you want to join post your minecraft name in a comment or post and you'll be whitelisted a.s.a.p.