Feel like I'm gonna be posting this a lot today. Pennsylvania uses a closed party primary voting system. If you're a liberal voting in the primaries, it made the most sense to register Republican in Pennsylvania to vote for someone like Nikki Haley if you despise Trump. Don't want to say this is what happened, just that we shouldn't jump to false flag conspiracy conclusions right now.
USA mobile carriers have been charging for tethering since devices implemented the tethering feature. Android enforced it through carrier firmware. I don't remember how apple enforced it.
I remember having to jailbreak all my iPhones so I could get it for free. As iOS started feeling more limited, I bought a galaxy phone from Europe because the international phones didn't have the carrier firmware.
Then T-Mobile was the first big carrier to offer free tethering - I switched to them from AT&T. And now more carriers are offering free tethering because it's losing them customers probably.