There's a huge difference in posting something on twitter, from the comfort of your living room/car/bedroom/office, wherever vs. standing in an NFL stadium w/ fans of all races, religions, political views, etc screaming the N word repeatedly, to the point that an NFL veteran got mad and responded. The person would have either gotten his ass kicked or had been thrown out by security after being reported by an upset fan who took issue w/ the repeated use of a racial slur.