check this out for a bit more detail.
Not all the people reporting issues are as poor at photography as your comments suggest.
The issue is sorting out the experts, from those who do not have a clue.
There are plenty of web sites that do competent testing of products, and a few that don't. However, there are tons of people having issues with equipment who have not determined what the cause of the issue might be. Competent sites test known good lenses, and if one fails, they test three more. Since the Canon 50mm f/1.8, for example, is well known to be inconsistent in autofocusing (There is a lot of carefully done testing on this), any test using a lens like that is suspect, because of the issue that they are using a lens that is almost certainly the issue.
If you want to leave CR because experienced people are telling you something you don't want to hear, you can delete your own account, you do not need to ask a administrator.
I'd suggest that you take advantage of advice from the many good photographers on this site, and go to some of the premiere test sites and read actual test reports rather than taking posters in forums at face value. Many forums have some really good photographers, but the test sites tend to be a cut above because they have expensive software and the knowhow to avoid the pitfalls that do it your self experts step into. Some of those experts post on multiple sites, and others pick those posts up and repost links to them, and pretty soon, there are hundreds of reports that are really started by the single clueless individual.
Here are some of the well known sites that are fairly competent, and do testing on equipment that was not supplied by the manufacturer. Photography on the Net does not buy and test equipment or issue test reports. I don't bother to read their forums, there are probably some good and accurate reports among the many bad ones, its always that way. We always get a laugh when someone reports a finding by Ken Rockwell, so don't use him as a expert.
The Digital Picture
Digital Photography Review
Lens Rentals. They have some of the most sophisticated gear of any test site, and know how to use it. They also test many copies of the same brand and model of gear, so they know when one is different from the other X hundred they tested.
Luminous Landscape (Gets Sony cameras to review from a dealer, sometimes Sony as well). They do not pull punches if a Sony camera has a issue.
Lens Tip is competent, but they get equipment loaned by manufacturers, so that always casts some doubt as to whether the equipment was hand picked for testing.