It's not that fact that they wear suits, its the attitude they bring to the ACC. They sit quietly in the best seats in the house, focusing very little on the game, instead talking to clients or texting away on their phones. They usually get these tickets for free from their corporations, and do not value them as much as a passionate fan would. They make little to no noise, and they take their time getting back to their seats after an intermission, showing you that they care much less than we do about the outcome of the game. The ACC is probably the worst arena in lower bowl attendance immediately after an intermission. Watch it next time and notice how many empty seats there are.
Despite Toronto having the best hockey fans in the world, our arena is far form hostile, loud, or in any way intimidating, and it's their fault. I remember one game I was at the ACC, they showed a rowdy fan in the lower bowl just passionately cheering and dancing, and behind him you see two suits who are inferiorly looking at him like "eww, what an idiot.." while they sit with their legs crossed and eating sushi.