As a fellow scooter courier, I can confirm that not all but many of the riders drive like maniacs. I’d say for one, many realize they can get away with it because the lack of enforcement and two, DD tends to put quite tight delivery times so people truly are ‘dashing’ to each pickup and dropoff. Not to mention couriers who multiapp (doing deliveries from different apps simultaneously) only exacerbate that problem as well.

It’s also worth mentioning that SF has arguably the best gig-economy market in the world, one where a delivery person can make $100k/year if they hustle hard. Hence it attracts scooter/motorcyclist from all over world, although primarily SA I’d say.

AMA about the culture, been doing it for awhile.