Well, I did help build his mobtrap, but he gave me trust to his claim, otherwise I couldn't have built it.
I'll PM Pious, btw if his base did get griefed afterwards I'll bet he knew I'd help him rebuild so I don't see why he would report me.
He even has containertrust on my claim, whole thing seems rather odd.
I don't know how to reach chimzor1, just met him ingame.