I hope they ban every single one, though I doubt they will. Crota is not difficult, and I have heard people say they took 2 hours trying to get the d/c cheat to work. You could beat the whole raid three times in the same timeframe. Bungie should just look at the disconnect log. If someone was in a fireteam where the leader d/ced more than a couple times in one fight then ban the group. I will give the random d/c and even one or two more to be generous. Past that it is obvious what they are trying to do. There is a large difference between using terrain or game mechanics to win and manipulating the network. Edit: I will say they should do that going forward. I don't think it's fair to ban people who didn't know it was a banable offense, even though I think they should know better.