Usually with bans I try and get people to admit or at least think about what they've done before I give an answer. But I guess I'll cut right to the chase. I found two questionable areas of looting, later checking logs etc. to see who owned them and whether you made the area/had any right to the items.
The first area is owned by a player Merlin962, located at x3475, z2875. All block logs belong to him.
http://imgur.com/a/SZhV0
You've since looted all valuables, then proceeded to use the furnace to smelt them. This location I found to be the most suspicious seeing as the only thing you had done to this public realm is loot the chests.
The second location I was less sure of, as it was located amongst friends realms. Nonetheless, seeing as there were NO logs for anyone building in the location or putting items in I had to assume it may also be a location that had been looted.
http://imgur.com/a/dxT2t
There are a few people in this that would need explaining I don't feel like going through 70 pictures of looting to sort them for each person. Again, this location has no block logs and is in a public realm.
The three players in question the most are You, Bain, and Lardimus_Prime. Otherwise J0rdster took some dirt, and a player named awesomesauce who is already banned.
I hope to see ample explanation and a speedy unban, as I didn't really expect this from you.
Best regards, VV.