Wow, really? Has it become such a generational sea change? Have people really failed to understand the nightmare that modern javascript, full-motion animated gifs, web videos, and ultra high-resolution jpegs represent to bandwidth? Nevermind their local CPUs?
Javascript is really the black hole, though. When people defer their client-side libraries to whatever CDN, and then let that library manage whatever it pleases for dependencies, forget it. That's like saying, I don't even care if people's computers catch fire and explode, when they try to watch this awesome star field simulation.
Oh yeah, and all the ads and spyware analytics too, ya know...