This is most likely it. They already collect light KYC (SSN) if you make significant sales on those trading cards that you get from games randomly and can sell or dust. Currently, there are not enough clear rules around how to regulate any digital asset, so it could be a very complicated problem for Steam.
I do believe we'll eventually see integration of digital assets into the platform, but I believe that will absolutely be the case with all major platforms.
All I want is a bare metal browser. I don't want an operating system and I don't want to run chromium OS. It would be great to see a bare metal browser that implements something like Gecko.