Tbf, I consider scoring a goal as taunting the crowd.
I've seen players celebrating goals before putting them in, that's taunting a crowd.
Players sliding on their knees into the away teams corner, that's taunting a crowd.
Any celebration in front of an away crowd is taunting the opposition.
Maybe they should have a catalogue of authorised celebrations, where you choose one at the beginning of the season and if you use something different you get shot in the back of the head before the crowd can go home.