Wouldn't it be better to have a twitch page for it over fb?
I'm not certain about anyone else, but for me fb is a private thing where family and selected friends only would be added if I had one.
You meant Twitter right? Twitch is a live streaming website. While Twitter will help a lot, Facebook have a bigger share of people. The optimal way would be to have both, surely it is time consuming to manage if you want to answer each and every users posts. Maybe linking Twitter to Facebook answering messages only in a specific time of the day can help?
If you still don't have a Facebook, where Michiru Yamane sent you compliments? Via e-mail?
To clarify I'm genuinely curious since this doesn't happens everyday!