Definitely. This seems to happen to me in things outside of Toribash as well.

My replay thread actually has my whole experience as a replay-maker from start to end documented because I wanted to be able to see exactly how I improved.

I don't know which was the exact point where I suddenly got better but I feel like that did happen.
I do however credit my involvement with ORMO on IRC as the main boost to my performance in this game.

Sorry for the late response. Only now did I fully started my summer vacations.