Well that is the problem with it, every shitty features like that someone can come up with something "quite clever" to do with it, in reality, all these things are being used 99% of the time for tracking.

Maybe programmers and designers should start thinking the other way around: what could be pretty clever that could be used for a feature but that CANNOT be misused for tracking

We are living in the best of all possible worlds. Without shitheads we would be vulnerable and wouldn't even know it.

> It's quite clever, that a site that uses lots of processing, or has autoplay, can limit what it does: " your battery is low, do you want to continue ".

That sounds like a client concern, not a server concern.

I mean, as a consumer of web content I do not want my power saving profile to be accessible or actively influenced by a third party.

Running untrusted code doing these things is not something I'm ok with.