I have no idea but if the price was right I would pay. I do not think this website should be limited to bilingual people. I have looked at outsourcing language porting for websites and I get quotes generally 'Per word' which I find somewhat expensive. Look at for example ELANCE.com which companies bid on your translation.
I have alot of ideas:
For example, getting non-english support emails. I would love if a service could translate it within 1 day and then re-translate the answer to send to the customer.
How do you ensure timely translation...increase points earned per day...eventually someone will do it.
How do you ensure quality translation...allow points to be split by an editor or revoked if the translation does not meet some % accuracy criteria.