I have been told by somebody that if you transfer wpress to your own domain space sometimes in the future, your links may get messed up in the process of tranfer. Another guy told me that you may lose your technorati ranking. All this is not mentioned in the FAQ
http://faq.wordpress.com/?s=hosting
Can someone please enlighen me on this. Though Ad revenue is a distant dream right now, maybe a few comments there(wp on own domain space) would not be totally out of space.