[yazzku]

I don't know what you mean by "responsiveness". Html/Css/Javascript is dogshit when it comes to latency. I assume you're talking about fluid layouts, which can be accomplished just as well with native GUI libraries like Qt. Note that Qt runs like a champ in embedded devices; I don't think it can possibly get more responsive than that.

> and this site seems to disrespect user expectations about layout, menus, and interactable elements, from a glance.

Why does this matter? GNUCash is a desktop application. The website is not all that relevant. And I have a different opinion about expectations anyway. The website is functional and easy to navigate, unlike the column-style, white space wasteland that "mobile-friendly" websites typically are.