As far as I can see the company behind it (Starfish Neuroscience) is not affiliated with Valve in any way? (Aside from having the same CEO)

Yperating System?

This will only make models of bad actors who don’t follow the rules worse quality. You want to sell a good quality AI model trained on real content instead of other misleading AI output? Just follow the rules ;)

Doesn’t sound too bad to me.