Ha, the only one BBS get together I ever went to was a disaster...
I would say the group shoots I've been to are more like the LAN parties I used to attend back when I lived in MN. Getting a bunch of like minded people together to admire each others stuff and shoot it up, though at the LAN parties that was all virtual...
Well I ran a local BBS from 1992 - 2011, and was active on another half dozen BBSes around Indianapolis starting in 1991. We had a number of BBS parties and get togethers mostly during the 90s. By the 2000s we were all too busy with family and stuff like that. Most of them were pretty good.
I can see the LAN party aspect. I used to go to those as well, a few here in Indy, but more in Wisconsin.