Well, it's not news that until the 3nd season this show was more than worth it the watch, even if i didn't really enjoy all episodes, the majority of them were pretty good. then the 4 season came around, and only 1/2 eps were actually good but even then, it didn't see like black mirror had lost itself but boy, it really did, and the 5 season just put that in our faces. When i finish the season, my first thought was "well maybe black mirror should be cancelled" I wasn't excited for more, I didn't want more of it, I just thought it was time to stop. It's cleary that they don't know what to do with this anymore, and they surely run out of good ideas to episodes, so it's for the best if we just let it go for it's own good, you need to know when it's time to stop.