I was going to ask a related question -- with prices as low as $50/kg, what's preventing people from launching a bunch of useless sh*t into LEO? Does someone need to approve? Or does that orbit decay so quickly that it's not much of an issue?
Demand. The market price for sending stuff to space will be significantly higher, pricing out _almost_ all of the useless shit.
Edit -- turns out this is a thing, already, I just didn't know. SpaceX apparently does not mind. Flights to the moon are planned.
Also, you can send the turd alone, you need to attach it to a launcher, and have a deployment mechanism. You are looking at a few thousands $ minimum regardless of the weight.
Is that by treaty?