They are not putting out info onto twitter.....putting posts on "Tiger bait" is different. You want me to "goggle" it but you can't point to a specific party on twitter that is there to poke fun at BYU (or all their opponents looks etc).
Point is not is it appropriate, it is fine and I would not be bothered. I do believe many here would be bugged.
Let's be real, if a twitter poster from Utah/BSU etc made fun of Provo, looks of the team, professors etc people would be mad.