That's the real trick isn't it. How do you gain trust without being a regular member of a forum? I don't have a lot of involvement with bitcoin these days, but I was a major enthusiast back in 2011-2012.

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.

Obviously in this case the possible passwords would need to be far removed from anything still used for active accounts, but in that case I don't see much risk?

Like I said, I've put a lot of time into it so I'd like to use it for more than my own wallet, but I'm very aware that there are many scammers so it's not even easy to give something away for free.