Might I suggest you take the time to read what appears on your screen when you create a new topic?
Then might I suggest, that you take some time to study the rules of the road. Regardless of this cyclist's disregard for the rules, if you are going to use the road which is shared with other road users, you shouldn't have to ask:
Does anyone know the rules for cyclists?
If you are going to use the road, you shouldn't have to ask that. What are YOU doing on the road if you don't know the answer to that question? You should already KNOW what the law is.
But no, you carry on, tell us all how exciting your day was for you, and if someone fails to join in your tutting and head-shaking, write petty "insults" in pretty colours (a feature I see you bother to take the time to investigate, yet fail to read something that appears plainly on your screen when entering a new thread title - how odd)
Furthermore, why do you actually need to make a whole new thread because one cyclist ran a red light? If a new thread was created every time anyone saw a car parked illegally, parked on the pavement, making an illegal turn, speeding, turning without indicating, running red lights, holding a phone etc. then there would be very little room for talking of anything else.