The fact is before we kicked a ball in Yankee stadium the Stadium itself (Yankees/security) gave all the groups a letter stating what is and isn't allowed. It was discussed here and went viral and was made fun of by a lot of Sg's across the league.
So when we see people getting kicked out for it and others complaining I can't feel bad for them.
Stuff outside the stadium, I get, fight it.
But inside, those rules were set before we took a step inside the stadium.
I think it's more people trying to show the league that we aren't 'plastic' by letting off smoke, instead of just making a lot of noise and banding together.