Seriously, look at how they both structure their themes. GTK2 has pretty much one fucking file to edit a theme, and it's easy to understand. On the other hand, gtk3 has 16 - which take about 500KB compared to the former's single 30KB file. And here I was thinking I'm almost done with my xfce theme - looks like I'm not going to finish it in this lifetime.
Has the tech world in general went astray? Are they missing the point of what software is supposed to accomplish? Simpler is better as long as it does what's needed, and gtk2 did...This also applies to browsers (obviously), init systems (you know the culprit...), everything. How free does FOSS make us these days, really?