Same probably goes for slot machines if you strip them of all the bright, flashy colours and comforting sounds and make it a black metal box, with only a number display.

Its almost like... it was inherently designed to be as addictive as possible?

I hope the point is bigger than a nit to pick, but a plain slot machine is still bad. Social media used to be good or at least interesting in a good way. Maybe it can be again.