When I was playing IB this last time around one of my teammates would call out everybody for lag switching, it was annoying. He is part of a pool of people who thinks that if someone is lagging they are cheating, I have never reported anyone for lagging. I think the whole phenomenon is caused by sweaties who can't deal with dying and need to deflect from the fact that they just aren't as good as they think they are and so they blame whatever they can instead of facing reality.