Well I for one like griefing the houses of server owners! (Only if they are unfair and treat people badly, your not on my radar blue) I've been banned for "redirecting" the server owners tnt cannon. It was pointed at my house so I used slimeblocks to bounce it right through his front door. (Lucky first try!) He got mad at me for himself blowing his house up and he permanently banned me. I didn't like the server anyway. I just hate it when server owners and admins use op weapons and just kill you when they have the chance.
I have never been banned for anything close to a legitimate reason, only once for 7 seconds for "because she kept asking about it o.o" by Samiiii_ when she was admin. I did keep asking, though