idk… I feel like Valve might be the one with the power to stop this already with refunds. It sucks for them, since they’ll lose their cut of the sale, but if they refund thousands of copies at full price, it adds a financial disincentive for publishers.

If Valve made it a policy to automatically refund games to anyone who asks after DRM is added, that might help encourage more users to request refunds, so publishers might be less inclined to add Linux-breaking DRM (good for Valve), and get more goodwill from gamers, but it will also cost Valve more in fees, and encourage publisher pushback against Steam’s perceived monopoly.

I have no way to speculate which of those incentives is more important for Valve.