Re: While were at it....
"especially if he is one of most who do not stick to the prescribed 1m from the curb and then get all self righteous when somebody only leaves them a "door's width" (i.e. as much as you would leave if overtaking a car) of space when overtaking them."
prescribed distance of 1m? Nope, no prescribed distance... two positions, Secondary and Primary.
I take the Primary position when it is not safe for your to even attempt to overtake me and relax back to Secondary when I DEEM it to be safe enough for you to overtake me.
Why do cyclists ride in the middle of the road?
Watch this video which explains it:
https://www.youtube.com/watch?v=htZMbiCRNT0
also this web article:
https://www.regit.cars/car-news/cyclists-why-do-they-ride-in-the-middle-of-the-road_62617
I would suggest to you that you go and download a copy of the current Highway Code and re-familiarise yourself with the contents and not with the muddled made-up rules in your head.
There have been a lot of changes since you probably threw it away after 'passing' your test...