Yeah..so you switched to red and won and he said you only use red or blue so you switched to yellow and won which made him complain about you using lame tactics and that you should stop running and walk instead or better yet not move at all and put out your saber too because it's really hard for him to kill you if your saber keeps blocking his attacks, right?
Don't worry about it. You did nothing wrong. There are people who whine whatever you do. Whining starts when someone loses a duel or 2, 'cause you can't possibly be better than he is; the reason you won was because you played dishonorably, cheated, spammed or whatever. That's the comunity for ya
If someone is spamming a certain move 24/7 it does get a bit boring to fight him, though.. But if you did something else than the blue lunge ad infinitum, then the whiny opponent you mentioned should really shut up.
EDIT: Whoa! First post, huh? Welcome!