heathqr's ban appeal

I have been banned and not sure what the ban was for, but I have received a nasty message from piesquared:

"Did you not read the sign? Kill the mooshrooms and be banned. I know it was you, and you will be punished, one way or another."

First of all, if this was the reason i was banned, please provide the proof (picture) that this was my doing. Secondly, please tell me what rule I have violated that is posted in the rules forum. I was unaware that simply writing a sign saying "don't do this or banned" was an enforceable way to protect one's property. Finally, I do not like the way that piesquared has threatened me via message. Maybe we should consider a ban for her?

Please resolve this issue quickly as I have an epic build project that I would like to finish. Thank you.