[eropple]

Can you explain to me how "you must affirmatively state that you own or have licensed rights to the training data (and if you're lying, the legal responsibility is yours and not Valve's)" is not a clear rule?

And yeah, they should kick those games off for using copyrighted materials that they do not own.

[Vermeulen]

This is a rule developers are just finding out now from a game getting rejected. Pretty major deal if multi-million dollar budget games like High On Life should now be banned (even worse if they don't ban it now, making the rules unclear). It should have been a public statement, with a clear change to their developer terms.