nightmare wrote:So, is someone gonna try baiting this guy out with a sleeper or what?
You'd have to both move towards the area from the outside on an actual fighter and have a bait character move towards the shop at the same time. They have a watchbot both in the Ring of Brodgar itself and near the gate at the edge of the safe area and will likely not come out unless you've been seen by both of the bots (lest they run into someone actually capable of defending themselves). The fighter can't directly come from the Ring of Brodgar; you pass through a palisade gate on the way there, giving you Visitor and allowing the griefer to just Evict you should you prove to be capable of defending yourself. (Evict while in combat results in automatically getting KOed.)
Also, it's almost certainly a group. In a warning message near my home they referred to themselves as 'we', the fact that they were easily able to reach my base implies a significant teleport reach individual players typically don't have (nobody's going to sail for hours just to deliver a runestone), and them being able to figure out my main's name (despite the shop being owned and run by an alt, and the cornerpost being destroyed by a different alt) also implies significant information gathering capacity (I've kinned very few people on my main).