Is it time to start calling out bad cyclists?

a cyclist helpfully screamed "its a red light" at me this morning as i took a cheeky left on red at the junction of outer circle and regents park during a training session.
I weigh up the benefits of carrying on moving against the cons of stopping and make a quick decision that benefits me and my desire to maintain a constant speed.
"how about you wait until you get to work before you start ordering people around you type a personality disorder cunt" was the response i had in mind.
Although "piss off you wanker" was all i could say in time

what gives people the right to tell others what to do i ask? I would advise someone not to go on the inside of a left turning lorry, but other than that, people should mind their own business really, unless they are the ones being endangered
tl;dr

RED