There is an extensive post on the subject: https://igurublog.wordpress.com/2012/11/05/gnome-et-al-rotti.... It's tragicomic to read ("And I have no idea what XFCE is or does sorry.")
I'd say that the GNOME devs have Jobs' ego and intention, but none of his talent(s). But at least they have branding™! /s
> Can we declare that GNOME Shell doesn't have themes, and prevent people from posting screenshots of GNOME Shell with a modified theme or with a modified top panel?
o_O
> Transmission has an option in the Desktop tab of the preferences to “Show Transmission icon in the notification area”. This should probably be removed.
I grew out of theming and tweaking the look of a desktop before I got to high school. These days the only tweaking I do on any OS is keyboard shortcuts. The baseline has gotten good enough to just not care, and my guess is that that's most users' position regardless of OS.