> buttons were clearly marked

Recently some UI ignored my action by clicking an entry in a list from drop down button. It turned out, this drop down button was additionally a normal button if you press it in the center. Awful.

> UI creation compared to MFC

Here I'd prefer Borland with (Pascal) Delphi / C++ Builder.

> relative resizable layout that's required today.

While it should be beneficial, the reality is awful. E.g. why is the URL input field on [1] so narrow? But if you shrinks the browser window width the text field becomes wide eventually! That's completely against expectations.

[1] https://web.archive.org/save