The biking culture in Amsterdam is fine. The problem is tourists standing on the seperate bicycle lanes - colored red, with pictures of bicycles on them - and thinking that they are being assaulted when a cyclist rings their bell to wake them out of their cannabis-induced stupor so they can get to work.

Fat bicycles modified to go faster than 25 km used to be a problem, but they get stolen so quickly now it’s less of an issue. 😆