Where I live we have a wonderful bike/pedestrian path which is heavily frequented whenever there's good weather. The worst offenders are racing bike drivers. Well at least those who like to LARP as such. (50yo, wearing cloth like they would be competing in the Tour de France).
They don't have bells on their bikes because "aerodynamics" (my guess) and they drive like absolute madmen down the path (they compete on Strava).
I myself got yelled at several times which I usually shrug off or tell them to f** off. But what gets my blood boiling is when those people go out on a Sunday when there's sunny weather and start their BS on a crowded path.
The path is frequented by families on weekends and I have seen multiple times how those 40yo/50yo "gentlemen" yell at little children because the kids have the audacity to have fun with their little bikies and thus ruin the racer's Strava times.
Our local mountain biking (we're not really mountain terrain yet we still have some single trails) community is completely different. They're nice, they always make room when you meet them in the woods. No problems there.
/rant