I wouldn't assume it's a member, but yeah, the member map IS visible to lurkers and anyone else. Maybe that's something to be looked into, maybe not. It's a very useful tool for me when I find something somewhere and know who to start PMing, so I'd hate to see it go away or noone using it. I also know I get nervous selling anything on CL because it seems everyones "shoppng my garage" when a deal goes down. Everyone I've ever dealt with from this site is straight up, honest and generous, and I've tried to be the same with them, and would HATE to think that any feature or anything on this site facilitated this scenario. But it is possible, I suppose.
Personally, and as I said, I get more nervous making CL deals. Particularly when they're shopping my $hit at the same time. The guys (Several) who were supposed to come look at Pickle, had my address, never called again, never showed, make me nervous since it's in the driveway now. 2 hitch coupling locks, a big ass chain and lock through the wheels and another chain and lock holding the tongue jack down. Still could dissapear in the night. Since this, I'm revisiting my idea of hammer drilling the concrete in the driveway and installing pull up hooks I can lock the trailers down from underneath with.
My advice, if it was insured, just leave it go. Sell off what you can, save what you wanna save, and buy another boat. You got a decent trailer there that can bring some change, maybe interior, fuel tanks, etc. Not worth any legal issues to settle a personal vendetta. On the other hand, if you just HAPPEN to find out who was involved and no one is looking, well, there's a LOT of bodies buried out in the desert up there............I'll bring a shovel............

Ray
I'd also add, the crew that did this, wasn't one guy, this ain't their first rodeo doing it..........