Cycling on the pavement (on e-bikes, racing bikes, whatever) at speed, silently, no lights often, no pausing for pedestrians to cross at zebra crossings or even green men. An e-bike nearly hit me yesterday while a policeman was literally standing there watching (outside a government building in case you're wondering where on earth I saw a live one) and he did nothing, just looked at me like "wow that was close!"
I can't handle it any more it's miserable. I can't drive so it's not a car thing it's a pedestrian safety thing.
I also think seeing that it's fine to do this, in balaclavas often, is sending a message that crime and bad behaviour in general are ok. No one will stop you.
Some men (boys? hard to tell in balaclavas) on e-bikes provided by the council took an angle grinder into a busy central square last week and just calmly cut out bicycles from stands to steal them (obviously a crime I feel conflicted about in itself but how long until they realise they can just mug pedestrians at knifepoint? It was 3pm, bright sunshine).
I find it kind of hard to believe what we're just supposed to live with now. No safe spaces for walking - forget about it if you're visually impaired.
If you live somewhere with no antisocial cyclists where is it please as I'd like to join you.