We did 6 months in the southeast over a winter moving from place to place. Most places with a seasonal population had activities and we were informed about them at checkin. I never felt like it was a closed club, especially when you're talking poker and you bring your change jar :)
The only observation about seasonals I have is they seem to own the laundry facilities. You'd better be there when the washer or dryer stops. Glad we have a Splendide on the bus. We only needed CG laundry for the quilt and couch cover.
I'm not sure what the draw is to spending an entire winter in a mobile home that doesn't go mobile.