They're same as every other fanbase -- some classy fans, some knowledgeable fans, some obnoxious fans, some ignorant fans. Some still whine about Kaufusi while refusing to acknowledge the way they've mugged Haws in the past, some call BYU the dirtiest team they play, their student paper published the worst sore loser article after the tournament game that I've ever seen, etc. But lots of their fans are great. At the end of the day, it's just a normal fanbase.