Checked my profile and says I've been a member since August, 2005, so not quite 20 years. I have no memory of how that all started, and I can only guess that I saw a link to it in some Gator forum and logged on to talk football and it spiraled (out of control) from there. I am an older guy, 60, and absolutely do take pride in SEC kinship. I know not everyone does, but I always have and always will.
The two sources of that are, first, the fact that I must under the state's constitution hate FSU. They were independent forever, so there was no identity of cohorts for them, really. Maybe Notre Dame. But then they joined the ACC and I have thoroughly enjoyed watching that conference, despite a few bright shining moments, essentially flounder.
Second, when I was an undergrad at UF we all anxiously awaited the football magazines, usually came out in mid to late August, and they did an excellent job of explaining which players and games would tell the tale in the upcoming SEC race, not to mention how the champ would figure in the national chase, or in the big bowl games. I candidly admit that I miss that.
So, while I will not root for UT when they play Florida, that's one day a year out of 365. (I don't count basketball or baseball because the consequence of a loss in those arenas is usually de minimis and so I am not as vested as in football.) And I am always rooting for SEC teams in the NCAA basketball tournament.
All in all, its just flat out an entertaining place to be. I find the FF fans to by and large be more sane than UF football fans. I think for whatever reason the Gator board attracts more recent students, who do not appreciate the ever-swinging pendulum of SEC strength and weakness for a given team. They'll learn.