25 person max raid size for expansion

[Skandranon]

As such it can be said that there is 60% less drama in a 25man group than in a 40man group.

Quite frankly, I don't think it's possible to quantify drama. I suppose your statement that "it can be said" is true, but the saying is utterly meaningless. It shouldn't be interpreted to say that all guilds will experience a reduction in drama of approximately the same size, because that's simply untrue. There are many who have experienced a reduction in drama from going from a small guild to a large guild; the reverse is not always true. That your personal experience may be different I respect, but everyone's experiences are different.