My tattoo artist (who skates simply casually. Can do manuals, maybe a kickflip or two) in Baltimore is friends with Osama & Ayman and he hung out with them at their warehouse this week with some other homies and they just gave them a bunch of free decks, shirts, and accessories. So maybe their way of not essentially "paying" their "riders" is by giving them free shit of whatever they want. Maybe people are cool with that, who knows. But it seems everyone who helps out with production, warehousing, drop days, and skates are literally just all friends together.
I reckon these guys have regular jobs and skate with/help out Osama and Ayman when they can.