Just ran into one of the downsides of the PC versions. 3 straight players where it was obvious by replay the other guy was using macros. Then again, that's online play in general, but SF4 has it worse than most.
You can tell because the inputs are the exact same every time, even on things with leniency. Top players don't have that exact sameness on their replays. There's occasionally a frame variation.
Just out of curiosity, is one of the guys named "ToolAssisted"? I think that guys is probably the most notorious macro user of them all. His name says it all and he has his own stream as well. I've played him several times and the first couple times I played him and I knew something wasn't right.
He tech'd every throw attempt I went for and when I instead went for hop kick, he just blocked it. I wondered how anybody could be this psychic, but when I thought about his name again, that's what gave it away. A lot of people actually know about him and don't really even mind him. They think of him as something of a different challenge instead of just a plain ol' cheater.
I'm torn on rapid-fire when it's built into some controllers, but in the context of this game combo macros are essentially cheating, regardless of skill. It's pathetic people do that when people online, ranked or otherwise.
I've admitted this before but I used to use turbo back in the Vanilla days. I tested it out one day just to see if it would help and it made jab confirms into SRK easier for me when I was still a beginner. I kept using it for a little while and back when I use to play Hitokage on PC, I beat him pretty soundly using it. I never felt too good about hit though, I knew it wasn't accepted and I wasn't happy not being able to do the combos without turbo. So I finally stopped and learned how to hit links on my own.
Another thing, I played Ryu back then. And if you had turbo on and held down and the fierce button after a solar plexus you would be guaranteed to hit that link which is a 1 framer and his most damaging punish(excluding jump ins or focus). And yeah, I did use that to lol.