"Nice try"? Just pointing out the factual error in your statement, get over yourself.
As for Canon "screwing over" people, cameras and lenses since 1987 all work fine with each other; AF, IS, metering etc. 25 years of excellent compatibility. Yes, they made a break, but at least it was a clean one and not one of deteriorating compatibility and kludgy solutions. Sure, the FD guys missed out on going digital over a decade later, but I think by then most had gone over to the EF mount anyway; before then you could just keep using FD bodies for those lenses since the main feature of the EF system was autofocus anyway.
Compare that to Nikon; have a look at this lovely (and quite large) "compatibility matrix" where you can see which lenses won't focus, which ones won't meter, and which ones will literally damage your camera. Gotta love buying an AF lens that won't work on an AF body because they sold a bunch of bodies without screwdrives at all.
Nikon SLR Camera & Lens Compatibility Chart
Or Pentax, did they "screw over" the guys stuck with screwdrive only bodies by e.g. releasing the 17-70 which only supports SDM? Or how about only being able to use stop down ("green button") metering with older K mount glass? And the wonderful M42 compatibility, where you mount the lens to an adapter ring and use stop down metering, just like you would on a Canon....
Or is everything just dandy in fanboy fantasty land?
Give me a damn break.