A related question: how many non-Nikon shooters go to Nikon forums to complain about Nikon?
From what I've seen, many of the most vocal complainers on CR don't use Canon gear. Some of them used to shoot Canon. So why are they here?
Have they 'found religion' and are here to 'convert' the great unwashed masses?
Do they have inner doubts about their choices, and coming here to complain about Canon helps them continue to justify their decisions?
Do they think they're being altruistic, devoting their time and energy to show us poor, deluded fools how bad we have it, and how good it could be if only we make the same choices they made?
Do they honestly want Canon to deliver products that would meet their own needs, however niche those needs are, and somehow believe that complaining here will help accomplish that?
Or...do they merely want to sow discord?
Frankly, the vast majority of CR forum members are here to request and provide information, share techniques and images, etc. CR is a great community resource, and like nearly all successful Internet forums, it attracts a few incessant complainers. Look on the bright side – they provide some entertainment on slow rumor days...
I wouldn't call myself a Canon complainer as I tend to find myself on the pro Canon side of most arguments that happen here dispite shooting Nikon but a big issue is that this is one of if not the best forums I'v found on the net for the technical side of things, far superior to say Nikon rumours.
A big issue I'd say is that Canon(and to a slightly lesser degree Nikon) is considered "the mainstream". On one hand that means If you had a legit reason for buying a something made by other companies your likely to explain why you didn't buy one of the more mainstream products. On the other though it means if your a gadget buyer/fanboy looking to define yourself by your purchases or net praise/criticism the mainstream is the obvious target.
That's really where a lot of the negativity around Canon and Nikon comes from with net media coverage as well. Users of Canon and Nikon products are generally after balanced opinion on them, users of other companies products are more often after gushing praise of those products and criticism of Canon and Nikon. Whats more as fanboys/gadget buyers spend a lot of time surfing output that gives them what they want gets good traffic.
When was the last time you saw review video with an attempt at comedy bashing a Sony, Fuji, Oly, etc product? I can't remember seeing one because those who might make them know it wouldn't get attension.