Scoble has been questioning the claimed numbers of MSN Spaces and somehow the conversation got sidetracked in the technicalities of “what’s a blog?” I’m not sure what Microsoft hopes to gain by inflating their numbers so much, now claiming 70 million “blogs”, but it’s interesting to note back in March they were claiming 123 million blogs users at SxSW (Flickr photo of their booth). Activity (posting, etc) stats would be far more interesting. (This is something we need to expose more, too.)