Adam, notice the join date on Chibas profile, sod knows who he is and you don't need to prove yourself to anyone really.
I absolutely love Shenmue myself but I don't get all giddy like a little girl when somebody starts saying they have information on such and such, so if you say you have contacts who can give info then fair enough. Unfortunately some people do get giddy like little girls and they and really a lot of Shenmue fans have been let down far too often by people who claim to know someone who can give just even a tiny amount of information on Shenmue. So the only real way you can prove it to them is by some kind of video interview but that's a ridiculous request. Personally I'm not arsed either way but it's nice to have these little insights.
Stick around, get involved in other parts of the forum and most importantly, don't give too much of a crap what people here think.