I think that a Permission script should be implanted along with via group/selected people.
Such as you can only allow certain people or certain groups create a certain block, or have the ability to destroy.
Op's would be given the ability to add a group, or remove a group. Adding a member to a group or removing.
List of groups could go as followed:
We could manually set the permissions for people such as commands, or blocks. This is a anti-grief measure, and/or simple for some server admins. The Operators or administrators can just as easily rename the groups as-well, if they have clan members or whatever.
I believe giving custom permissions in your own server will allow you more control, as-well as a organized server. If this would be implanted, it could save alot among us, and drop some questions/problem at that. Just remember though, this can't stop all griefers or people. Some people may disagree, or agree but you must remember that the server admin, can have his server ran any-way he wants it.
Ideas to add to this?