You broke the site guidelines quite badly in this thread, including (such as here) with personal attacks. Could you please review them and stick to them in the future? We'd appreciate it.
In your original post you say "But stuff like tab headers, buttons, or even text-sparse tiles - things meant for the user to click on - can, and usually should, prevent text selection" and you explicitly mention that you leave out anchors.
So far no reply to me has talked about problems causing by having selectable "tab headers, buttons, or even text-sparse tiles".
I am still 100% open to hearing about it. But I can do away with the personal attacks and sarcasm.
I am saying the web should work the way it is, like Hacker News does, as I already have brought up elsewhere.
You are saying "tab headers, buttons, or even text-sparse tiles [...] should, prevent text selection".
The article is saying the same thing I am. Basically don't do `user-select: none;`. The example is itself in the article's CSS.