They're basically trying to solve a problem that gaming has had for 20 years.
Low quality clones asset flips in cash grabs have always been a problem. It's always been a problem on steam.
The issue is AI just makes it easier to do in faster to do so there's more of them. It's not a new problem though.
They have been trying to solve this problem for a decade. This isn't a problem that's likely actually solvable.
Cuz no matter what you do, you're going to hurt legitimate devs far more than the cash. Grab guys the slop cloners.
You're also going to knock out the slowly growing group of people who are using AI to make their little dream games but actually do it well.
There's not a lot of them but they're popping up on places like itch or just on GitHub pages.
I don't envy valve the fact they're even attempting to tackle while expected because it is their store is also genuinely commendable. Most companies would look at this go f*** that it ain't worth the effort and then f*** off.