I cycle every Wednesday evening, with one big difference, i get off road as soon as i can
However, when on the road getting to off road, i have never have any issues with cars or them me, if i can get out their way i do. But, i usually take my bike via my van to a set meeting point and regularly have encounters with the road cyclists on route, we have cycle lanes and i must have had half an inch of mirror in said lane and had 3 very angry lycra warriors make comment and then proceeded to watch them ride on down the road gesturing and commenting to pretty much every driver they were undertaking, pretty sure thats illegal as it happens The best part was, i knew they would be going to the same start destination as me So when i got there, now on my bike (which confused them no end), i had to take the opportunity to have a little chat and ask them what their issue was, a fellow cyclist challenging them on their attitude, they didnt like that
As Stevo mentions, the problems are Strava and wanting to maintain the average and get the illusive 20 to 21 mph, nothing else, nothing more.
They are unaccountable for their actions and they know it, i bet they dont behave like that in their cars, so why bikes, because they know they can