Is it time to start calling out bad cyclists?

Ha Ha, I see this guy quite a lot on my commute. He does lots of undertaking, I saw him a few days ago coming up to a red light undertaking a stationary bus, the light turns green as he is doing this and he ends up grounding his pedals on the kerb. Also saw him this week in Shepherds Bush, jumping red light and narrowly avoiding getting hit.

His bike has a hub gear, and his chain is really really slack. His bike handling skills are pretty bad too - lots of wobbling around when he is filtering through traffic.

All round dangerous kind of rider.

It sounds like he wasn't just having an off day when I saw him. He had a real arrogance about him.
If he carries on riding like that, it's just a matter of time before he's under a bus...

If it looks like a twat, and rides like a twat....we all know what it is. ;-)