I don't believe that many players would use autoblock software these days, why if you'd get ganked most of times, or headshotted in some of most unexpected ways.
I suspect autoaiming sometimes, though, but I explain headshotting rows to myself by the probable unreachable degree of my old friendness (they call it skill, which it probably really is) of some my old friendchers that headshot too much. So, I mean, there's no way that autoaim could raise to a higher level of being my old friend, if it's already reached, and I think that many years of point&clicking is enough to not have to have an autoaim cheat to land a green lightsaber on a red skull-shaped balloon properly.
There's plenty of more annoying things around here, I think: macrofeints and especially - macroed swings (especially macroed thrusts), lags and ping, kiting archers, paper horses. And what's for autoblock users, well they do deserve to be someone to point fingers at and laugh at, and no more, in my opinion.