Yes, the phone experience suffers. I wouldn't call it an advantage, especially since the worst problems (itty bitty upvote/downvote buttons, for example) could be fixed with maybe just a couple hours of CSS tweaking.

But as a whole, and particularly on desktop, the signal-to-noise ratio for this site is so high that it naturally attracts a certain type of technologically-conservative, nonsense-resistant developer, I think.

There are several good apps.

I agree that it’s an advantage. It’s a form of quality control.