bs, batman's aa mode might not have been implemented in the game engine as a standard feature (which is a completely different argument) but the actual implementation was fully standard impelemntation of aa in directx. If it was non-standard and used some nvidia only technology then it wouldn't be able to run on amd gpu's with nothing more than a vendor id change. While the nvidia code may be proprietary, the actual implementation of the aa complies to dx standards and will work on any dx card that supports it.
This, like many of your arguments, has already been debunked in previous threads. People are not stupid and they have memories that extend past three months. Repeating the same false arguments a few months later doesn't mean people forget that you already presented the same arguments, nor will it mean they forget that the arguments have already been squashed.
I don't think nvidia has to play dirty and from a business perspective they really aren't playing dirty, nor are they doing anything illegal. There really is two schools of thought on this and you have to look at it from all perspectives.
From a business standpoint, and i've said this before, i actually applaud what they tried to do. It was a gamble that backfired but if it worked, nvidia could have slowly put a deathgrip on the industry and ensured their cards would almost always be needed to have the best experiences in a game.
From a consumer standpoint, this is nvidia and the developer bending you over, and then asking you how much you like it. Apparently most people don't like it but the usual nvidia defenders sound like they like it a lot. Reminds me of the kevin bacon scene in animal house, "thank you, sir, may i have another?"