Since you talk from this angle, here’s an example from a different perspective of how this is still a problem (though I maintain it’s almost always a terrible i

Since you talk from this angle, here’s an example from a different perspective of how this is still a problem (though I maintain it’s almost always a terrible idea for development/maintenance reasons where people think to use it, too—few components actually want what Shadow DOM gets them): I’m a user. I want to write user scripts to tweak things to my liking and to support my specific use cases. If you use shadow roots (especially closed ones), you may fundamentally prevent me from doing so, removing the agency of my user agent. I don’t like that.