We're absolute lunatics and one significant way in which we are similar to BBN is that we've been very online since the beginning of that being a possibility. Kentucky is #1 in sheer volume of keyboard warriors and always has been, and we have always punched way above our weight. Both are also more recruiting minutae-focused than average, often caring more about the ups and downs of the recruit rumor mill than actual games being played (though the whole sport is becoming less like that, thankfully).
Still, all college fanbases have broadly similar tics to them, they're all "delusional".
I have always chuckled at the "Whining Illini" moniker we get elsewhere. The sheer volume of things we're complaining about at any given time is pretty remarkable. And we're definitely really, really bad about creepy weirdos in the replies of teenage recruits social media posts. Again, hopefully that era of CBB is fading a bit.
We're also unusually mean to each other. I loved that tweet with the top online rivalries in college basketball and one of the top ones was Illinois vs Illinois.
(One thing we're not and I'm glad we're not is cult-like. We're not like Texas A&M where there's like a whole cosmology and ritualistic practice and fans compete over who is the most pious and personally connected to the inner sanctum. We're a bunch of yahoos lobbing hot takes from our Peoria basements and that's a good thing.)