why was i banned?

[Michael]

you use /spawn and /back (or /sethome and then /home). you don't demolish other peoples stuff, even if it's griefed, or you think it's ugly, or whatever.
Quite often we will come along and find griefed stuff, roll it back to repair it, and ban the culprit.

Banned until the end of the week, I'll unban you friday evening (gmt). If it happens again, it'll be permenent.