Guess you could use our services for a different reason instead. But we'll live.
I can name 3 online translation services that are much bigger than you. How are you going to "own" a space that already has much bigger players?
I was a fan of your service (mainly because of our large Japanese user base) up until this point. But you know what, I'll live without your service. :)
Repeating "I won't be using your service" is hardly constructive for anyone. Also I don't see why you wouldn't use them if they proved to be better than the alternatives at what they are actually doing.