That includes the ones who cheerfully run red lights while pedestrians are crossing. They're either too thick to understand or too rude to care & I have a fair idea which.
A former colleague of mine got knocked flying on a crossing by a cyclist who jumped a red light. She's a former colleague because she suffered life-changing injuries and had to give up work. She's had to sell her house and move into a flat and is now on a small pension + PIP.
It's made me utterly paranoid about cyclists, and I've had 2 scarey encounters. I live in a historic town with narrow streets and very narrow pavements, and lots of cyclists use the pavements because of the narrow streets.
The first was when I rounded a bend in the street to find a cyclist, who'd taken to the pavement to avoid waiting at the traffic lights, hurtling towards me. He had to practically stand the bike on its nose to stop before he hit me.
The second time, a cyclist was coming downhill behind me and shouted at me to move. As I turned round, my shoulder bag slipped of my shoulder and swung out, and he was so close that his handlebar caught in the strap. For a moment I thought I was being robbed, and yanked my bag back towards me. The bike came with it and he nearly fell into the road. Which made me a stupid cunt, apparently. 
These two incidents are a big part of the reason why I now drive into town, rather than enjoy the 1.5 mile walk. There's no practical way to avoid that stretch of the High Street.
I wouldn't mind considerate cyclists using the pavement, but because cyclists are not easily identifiable, they're not accountable, either. When they have to have licences, wear a clearly legible, identifying registration number and carry 3rd party insurance, then it will be possible to weed out the dangerous, stupid and anti-social cyclists, and leave the safe, considerate ones to enjoy the privilege.