Here are some landscape photos taken with this "unacceptable" camera.
That I can't do this with my 7D, or that you can't do this with yours, is not the fault of the camera.
These don't impress me. Anyone can take a good shot and size it down to 600px 72dpi and sharpen the crap out of it- to "fake it". There is no proof in these photos and I've seen comparable shots from much lesser cameras. Anyway...
Know-one wants to talk trash about where they live, or think something is wrong with an item they own and paid big bucks for. Same with a new car.
There are WAY too many 7D users complaining about the noise. There are literly thousands of posts online about it. The grain does not compliment your work. Some users suck it up and some are a bunch of anal sons of bitches (like Me) that only demand the absolute best image quality. And they expect it from a brand like Canon and they are not getting it.
Regarding the 7D vs 50D vs 5D test:
Grain can give the "illusion" that the image is sharper. Especially around edges of objects. When post-sharpening is applied the grain is enhanced even more. Grain takes away detail and the ability to sharpen what is actually in the photo. How do you sharpen the subject without sharpening the noise too? Easy, just resize it down to 1000 pixels and then sharpen. Give me a break.
Bottom line, viewing the 7D at 100% is SAND PAPER. Always has been, always will be. It's not you, it's the camera. Sell it and buy a 5D or 1D. Read reviews online, look at the comparisons. The proof is in the pudding.
But yeah, in the end it's just a tool.