Well… there are many people working for big companies on internal products that are not available to the public. Nobody can see their work, but it doesn’t mean they don’t have a lot of experience. I bet the freelancing part is quite recent.
Unfortunately we can’t really afford paying a freelancer for the web site. Besides… we need more someone to maintain the discourse instance rather than a developer.
Anyway, cut the guy some slack, his message is quite respectful and not really begging for money. Open source is not the total opposite of making money and having a business guys.