Mmmmh. Dead straight lane, with the best will in the world a cyclist and I am one also doesn't need a whole car width( regardless of Highway Code) of space allowed for a slow and reasonable overtake. I have to admit there are some appalling drivers out there but my guess is quite a few of them are also appalling cyclists. Mountain bikers on the road are the worst offenders to be sure. Most seem to be 30 something posh blokes.
Interestingly the same type who get into motorbikes at a rather late age.
Anyone been held up by one of these late( not born again) bikers slavishly obeying the speed limit. I've had to burn off quite a few of late!!!