If you were able to read, you had read that I have no problems with crouch jumping. And it is OK for what you described somewhere else (jumping through windows, etc…). In Half Life 1 it was right. You had to crouch jump here and there where it was needed but not to jump onto a small step.
But for jumping up small steps it is hindering the flow slightly and is nothing but an unneeded additional key.
And for your info. I am not a COD fan, I am an old school gamer and a game developer (buy the Rise of the Triad remake from Steam later this year and watch the credits, then you know what I mean and what I develop, kiddie). And from a developer’s point of view additional keys for simple actions are a bad design decision. For additional actions and special jumps it is OK. That way I got among the top UT players, a game which has much, much more advanced movement than any HL game or mod and are ranked number 1 (alongside others) at the fast paced Shootmania beta with it’s stamina movement.