I'm with you on suspecting it's a scam, but it's also understandable. Low earth orbit is so much cheaper than higher orbits. Regularly launching small, low earth orbit satellites is really economical, and takes care of disposal too so requires very little on-board capabilities. University researchers and amateur radio folk have been doing that for decades because it's cheap and practical - starlink just upped the scale.

I'm actually glad his garbage is low enough that when whatever bubble pops or he gets bored, they won't contribute to orbital debris.