Perhaps, but not necessarily that much. How many people would put a link to how to build a dog house on their web page? Anybody who would probably has links to other dog house things (buy a book on Amazon, keep it smelling fresh with this goo from WalMart) etc., diminishing your algorithmically determined authority.
Not everybody blogs about everything going on in his/her life.
Not everybody blogs about everything going on in his/her life.