Oh, you're such the optimist! Reminds me of a community in Calgary that was built just off of a major highway that had existed for 50 years. Once people moved in... they discovered the road was behind their house. This made them upset

Sound barriers, and everything were built... but they weren't happy, so the speed limits were reduced, but they weren't happy, and complained their property values are going down.
Anyways, living beside GM Place wouldn't be THAT loud and noisy, would it? Maybe BC Place with the roof open

But that's like 8 times per year?
It would be smart of them to market those buildings to sports fans, like Maple Leaf Square in Toronto, built right beside ACC.