I'm not sure, oh wait, I am. I'll explain it simply. We have MCBans. You grief people's stuff on OTHER servers, and you can't join ours. Now get out. We don't tolerate griefers. Or anyone with global bans.
First of all, I'm not an admin, but thanks for thinking I was one. Anyways, I just didn't understand, sorry. BUT you did break several rules. You technically griefed, by digging under other plots, you also cannot have more than one plot as a visitor, and you apparently wrote slightly disturbing text. I say those add up to AT LEAST a temp. ban, if not more. I'm not staff so I don't make the decisions, but the people who ARE staff will decide upon your ban soon.