Overtaking cyclists

I do a huge amount of riding in london, and I agree to some extent - you see some horrendous roadcraft.  Once a month you normally pass someone being scraped off the road and put into an ambulance bit by bit.  But to play devils advocate and add some perspective:

1.  No signalling.  You can always spot the newbies, they ride along and pop their arm out straight like it says in the highway code.  They keep doing it until they get t**tted by a motorbike or a wing mirror, then they stop.

2.  Going up the inside at junctions - I don't do it because I don't have a death wish, but when councils have painted a cycle lane down the left side of a road, and there's stop start traffic so the bikes are making progress through the cars it's not exactly surprising.  The only other option is...

3.  Weaving in and out of cars - sucks that you're stuck in traffic and they're not eh    Also note the massive conflict between moaning about this and moaning about point 2...

I think a healthy dose of realism is needed here - in London driving isn't like driving anywhere else. Nobody follows the rules whether on bike or in car.  If put on your bobby hat and start counting traffic offenses to the letter of the law, you might end up quite shocked.  Roughly 4-5 cars jump every red light on my commute, cars stop over the stop lines every time, motorbikes burn off like they're on an italian racetrack, bikes hop on and off pavements, pedestrians run out in front of approaching traffic.  Massive blinkers required to think that bicycles are the problem.