Story ownership doesn't exist. At least as far as I know. Saying it's 'somone else's' idea shouldn't be a shield to constructive criticism when an idea is continued by another and requests a critique.
I clearly should not have bothered. It's my own thoughts and feelings and I gave insight into what goes through my head from title, to concept, conclusion and character. I might be in the minority but I spent an hour carefully thinking on it before responding.
I think the OP got the high five they were really after so by all means continue. Sorry if I stepped on your toes. I won't discuss it further.
Indeed I will not respond again to a request for constructive criticism.