Hi Harold, I agree re reputation management.

I blog to get stuff out of my brain and free up some thinking space, I am very happy to pay for hosting my own designed little piece of webspace where I can document everything and perform mini-experiments and see what happens.

I guess others may feel they don't have time or have already reputations that they would like to maintain / enhance and/or they making a living from their blogs/websites so it makes sense - but it all feels a little bit too 'managed' and unflexible to me.