Experiences with hatena.com for Nintendo flipnotes?

[ShelliBean]

My nine year old son uses his DSi to view and download flipnotes. Some are gross, some are hilarious and none have been offensive. Now he wants to sign up at hatena.com so that he can upload the flipnotes he creates and rate the ones he views. By signing up, he will also be able to chat with other users.

To sign up I had to put my email in and they sent me a page that I have to print and sign, then fax to a 425 number (Washington) or sign it and scan it in, then email the scanned signature.

I have never had such an extensive sign up process for something so trivial as a Nintendo toy. I'd like to hear experiences from others that use this site. Is this an extreme case of CYA since their users will skew younger, or have there been incidents that prompted these measures?

I have until 6/26 to fax my permission form to them and they will hold my son's chosen user name and password until then. After that it will be 10 days to activate it.

Thanks!