[mananaysiempre]

I remember using both Swing and Tk apps on Windows that attempted to replicate a Windows look-and-feel and did not quite succeed, and the uncanny valley effect was strong with those; similarly with Qt apps attempting to emulate the active Gtk+ 2 theme. So being close to native might even be a bit worse than nothing like native.

(Not that it’s impossible to do a near-perfect emulation—IE 5&6, VB 6, and Office 97 all use completely custom widget toolkits, and apart from the funky menus and common file dialogs in Office people rarely complained about mismatches with the platform.)