I stopped by for about 20 minutes this afternoon, once the parking lot dried up a little bit. There were probably 15 cars running, and another 20 or so cars in the parking lot. It looked a lot like a "clapped out 240SX" convention. :P
I think sammm's reaction summed it up the best. I didn't see any gratuitous displays of stupidity during the short time I was there (which is mostly what I'm worried about - other club's bad behavior costing us an event site), but nor did I see a whole lot of great drifting. I saw more spinning than drifting during the time I was there - looked more like a group of novices at an autocross trying to go too fast for the course. :)
All in all, it looks harmless enough. It's certainly not how I'd choose to spend my tire budget, but the people participating seemed to be enjoying themselves, and they seemed to be behaving themselves for the most part.
Iain