Several of those people have had previous (recent previous) warnings or suspensions.
I'll refrain from commenting more, but they get away with more then the average user.
No log block is a fantastic excuse. Robo essentially claimed a small bit of land within the dungeon and they turned up and grieffed him. Had that been the reverse or other members the punishment would have been much swifter.
Yes, I've heard your complaints before.
These people aren't treated as "favourites", nor receive any special attention from the admins. I wasn't involved in the situation in question so I can't comment directly. I don't approve of what I *think* has happened but as I haven't had time to catch up with Maxi and discuss it with him I can't say any more.
If you feel so hard done by on the server you really don't have to play on it. Having patience and dealing with things in a mature manner will get far better results than coming out with accusations of the admins playing favourites - I can assure you, I don't, and the server for me is a massive time sink for a game I don't even play that much (read: at all any more). I only keep running it as I like helping out the OcUK community.