Besides, the only real mandatory hidden thing for any Bloodborne playthrough is that people taunt in front of the doll. Particularly the "pumped up" one where you raise your fist in the sky.
Missed everything else? So be it. I'm not expecting them to find everything there is to find, nor am I expecting them to look at walkthroughs. As long as they play the way they want to and enjoy themselves, I'll enjoy it too.
I dunno about you, but I expect this LP to be a WR 100% speedrun.
Not gonna watch it anyway because I still don't have the game :/