I agree, but if they did dlc like with killing floor, it would be fine, that wouldnt split up the community at all.with the player numbers at just over a 1000 we don't need anything that splits or alienates anyone
Expansions done like Rising Storm was, where you could still play in a limited capacity, I would pay for.
Other DLC would just be wrong for this series.
They need to make money. Plus if they did this they might be able to do more frequent updates.