@Oblivion you're not doing it right. I want to have a respectful conversation thread, not a pissing match, son.
Bait not taken. Also note, I refrained from throwing it back at you with a "name me a copycat game mechanic that was worse"
At the end of the day, neither of us has played ZombiiU. So this conversation is at best premature; at worst pointless. Like I said, I am hoping the two mechanics in question (finding your old self and leaving messages for others) are implemented in a way that serves this particular game well.
Full disclosure: I have not played Demon Souls. I don't care to.