When I was a small child, I get used to the Windows 3.x Shift-Delete for Cut. 
But equal to which modifier I press when hovering with mouse over a menu
item, pressing Delete just deletes the actual binding. And when I tried to
assign Alt-Up to Go->Up also nothing happens.

IMHO there should be another way to define key bindings than with the
default GTK+ way, because that isn't sufficient enough.

Another strange thing that happened in the context of key bindings, was,
that when I pressed Ctrl-Shift-. (which is Ctrl-> in fact), Galeon showed
me Shift-Ctrl->, although IMHO it should show either Shift-Ctrl-. or
Ctrl->, but not Shift-Ctrl->, because I didn't held two shift keys down. ;-)

P.S.: Thanks for Galeon, it replaced Opera, Konqueror and Mozilla for me.
It's just the perfect union of all cool features of those browsers with
dropping all those unnecessarities like mail clients, news clients, chat
clients, im clients, html editors, etc. :-)