"They condemn rampant sidewalk blocking, which can threaten the safety of walkers who are forced into the street. " is only part of it. Parking on the sidewalk - even if there is space for the pedestrian to get by - creates a problem for wheelchairs and mobility scooters - just another #ADA issue that ignored in most of the public discourse on public streets & sidewalks. It was only when my aging relatives needed to get around that I realized how little I understood the problems.
https://sfstandard.com/2024/05/22/sfmta-parking-tickets-crusaders-blocked-driveway/
San Francisco parking crusaders call 311. Their neighbors get tickets
San Francisco has a subculture of parking vigilantes. Frustrated with widespread illegal parking, most of all blocking sidewalks, these residents have taken it upon themselves to report vehicles to the city, often resulting in a parking ticket.
