I happen to have read that thread and I liked the solution too. I don't have any problem with Valve trying to prevent 5 stabs happening in a few seconds, but I do have a problem with how it's done at the moment.
Don't I already have that visual feedback when I stab someone in the back? I mean: I'm standing behind someone, I stab and that stab is in the back. Why would I need more feedback on that? The problem now is that when you try to get away quickly, the stab will fail because the animation hasn't...
Erm... why do backstabs need critical hits? The whole point of the backstab is that it instantly kills, so a critical hit is not needed at all. The critical hit brings a problem: it uses an animation which kills the target at the end of that animation, resulting in failed backstabs. This is a...