Is the internet spoiling 'Game of Thrones' Season 7?

Now that HBO's Game of Thrones has outpaced the George R. R. Martin novels on which it is based, readers and TV viewers are finally on a level playing field, with all of us equally oblivious to the plot twists ahead in Season 7 (and, if we're lucky, maybe even Season 8, which is set to be the fantasy saga's last).
Of course, because we can't have nice things when it comes to the internet, rumor has it that great swaths of plot details about Season 7 have leaked online, with enterprising fans on