Those balls are pretty expensive when you consider the volume needed. When my brother made his ball pit it ended up being more expensive than a nice couch. I think the price for the crush-resistant type at the time (~2007-2008) was around $0.20-0.25 per ball.

The more central to the business the more likely it is they have the dedicated cleaning equipment. It takes a fair amount of space so places like fast food restaurants are less likely to have one (but might use a service that comes by with one too).

Yes this is a deeply annoying “feature” of HN

I'd rather these articles weren't posted at all

Specially trained ball-licking chihuahuas.

Given breath mints.

> I wish sites would just stick with YouTube for video content.

Or host them directly as an .mp4 file would work fine in most cases.