Im not entirely sure this is a GNOME problem, as it would appear to be connected to PolicyKit. When trying to work with two wireless connections at once, GNOME decides by default, no matter how many times I blacklist or disable the adapter, to select the adapter of its choosing not mine. It's frustrating and Ive found this to the case on multiple notebooks using GNOME, yet I am unable to duplicate the issue in KDE using the same devices. I finally ended up using Wicd instead of GNOME's network manager, as Wicd gives me stronger control over what I needed in this area. Using Wicd, I was able to select the second adapter for my wireless connection by avoiding GNOME's network manager altogether.
I feel this should have never been a problem in the first place. And considering that the GNOME provided network-admin option also fails miserably, it's fortunate that a side project was up to the task of doing what GNOME wasn't.
7) Deleted your panel? Good luck getting it back to normal.
While it is possible, it remains a bit daunting if you're unfamiliar with the names of the applets and other additions that come with a panel out of the box. I remember when I first switched from KDE to GNOME. Somehow I managed to delete my lower panel and it took me a bit to get it back. Sadly, all the applets and other things that normally come with it were missing. So I was left diving through a variety of options trying to recover everything. In response, I propose a recover default top and/or bottom panel option in GNOME. Seems a bit obvious to me.
8) Consistent pages for GNOME projects.
Perhaps I am missing out on some cryptic purpose for making Projects.GNOME.org as devoid of useful information as possible? No, wait. That is not entirely true. Many of their pages contain a great deal of detail on project status, bugs, etc. Yet sadly some of the less known projects have pages that yield absolutely nothing of value.
There seems to be a glaring mix of decent and terrible page design within the same site. Worse, theres a lack of uniform feeling to the pages. This makes trying to go from one project to another within Projects.GNOME confusing and a bit annoying to the eye. A consistent experience would be fantastic.
Where GNOME drops the ball is also where it excels best
The thing about a desktop environment like GNOME is you either love or hate it. There are just not that many people out there who will with a straight face, claim that they really don't prefer a specific desktop environment over another. Any "daily Linux user" out there has a preferred desktop. Claiming otherwise, is simply not very likely.
I happen to enjoy the GNOME desktop myself, over all of the alternatives. But by no means do I think that GNOME is flawless or in any way, the best desktop out there for everyone. Better for select groups of people. Sure. Perfect? Not even close. It's a desktop with as many flaws as one can expect from anything under such ongoing heavy development.
Lucky for us, the libraries for the applications in question are generally usable across the Linux spectrum. This translates into GTK and KDE apps running back and forth with minimal problems. And let's be honest, being able to switch it up does help the user experience sometimes!