1. It is not a naming issue. Being "free" and being "GPL-compatible" are two
different things for a license. A free software license can be
GPL-incompatible. The reverse is not true though: the GPL only is compatible
with free software licenses.
2. I do not know if it is "correct" but "easily imitating a proprietary OS'
look" is a feature, not an essential freedom. See my previous post. It
contains as well a link to a theme that may please you. As far as I
understand, it is quite easy to install a theme.
3. http://gnome-look.org exists and it is not alone. I am not sure if
everything on it can be freely redistributed in a non-commercial way (as it
should). For sure, not everything is GPL-compatible but almost nobody demands
artistic works to be under GPL-compatible license.
Acronyms and shouting are two common uses of capital letters. Remarks are
not. To communicate, the interlocutors must agree on a common language
(including typography).
