My hope is that by offering a free service that doesn't require any trust (get a password back from a wallet hash) I could build some.
That's a good start; not requiring the actual wallet file and a free service.
But make sure that most conversations are public except from messages containing the hash and partial possible passwords.
A sudden reply that says "
Thank you for your help" wont gain you any reputation but doubts specially if it's from a newbie.
Also, make sure to post it in the correct board so it wont be deleted.
If it's about Bitcoin, post it in "
Services" board:
https://bitcointalk.org/index.php?board=52.0