And without commercial buy in, I can’t see why anyone apart from computer geeks and scammers would want to use it. The first question your average users would ask is “why isn’t $SHOP on there”.
Much as I dislike the modern web, it’s what the people have chosen in exchange for free services (like email) and convenience (like online shopping).
And to repeat my earlier point, an EULA isn’t going to keep your vision clean. Malicious actors aren’t going to give a hoot about any EULA. And any business that might take an EULA seriously would simply choose not to use such a minority platform anyway.
Also if this “EULA” is targeting how companies use your platform, then it’s not an EULA. What you’re talking about is a different type of contractual agreement.
In other words, it's more of a social than a technical issue.