I often encourage members to post publicly because they are more apt to gain feedback from a variety of perspectives. However, this is an interesting idea.
You have done a great job of pitching your idea.
Feedback should be interesting.
I, too, have seen people do well with a sponsor/mentoring relationship within a program, like AA. I think it helps that it's done within a program of working on set goals, like the 12 Steps or other type of a program.
I know that I do not have the extra time/energy to participate in this type of a more formal program. I know some members do eventually get to know each other and help one another along via PM and/or email.
Interested in the feedback on this idea.
Many thanks for taking an interest.

WC