Due to issues with external spam filters, QQ is currently unable to send any mail to Microsoft E-mail addresses. This includes any account at live.com, hotmail.com or msn.com.
Signing up to the forum with one of these addresses will result in your verification E-mail never arriving. For best results, please use a different E-mail provider for your QQ address.
And before you ask, yes, it was completely ridiculous.
http://www.cracked.com/article_18785_6-comic-book-crossovers-you-wont-believe-actually-happened.html
It's #5 on the list.