I dont know why I read that. I swear if that theory comes true...
You pretty much need to avoid spoiler tags for the next 2 years, because there are gonna be so damn many leaks coming from production that the internet is gonna be a minefield.
Matter of fact, I fully expect to be spoiled on the endgame at some point in the future, its unavoidsble unless you go dark. Too many trolls, also too many fukking lames like
@Lord_Chief_Rocka that think they are somehow special people for having read spoilers and they have to shout to the world that they know whats gonna happen. Even though a million other people read the same spoilers.
I remember there was a fan-art poster of the Nights King in front of a blue dragon that was posted everywhere before this season. People posting it because they thought it was an official promo or just some fan fiction shyt, but really it was a massive spoiler someone made after the plot leaked. You just cant hide from that.