What's in this desire to publish a blog? Is it ego? Partly. Probably mostly.
It's also like a clothesline. An airing out of the laundry, allowing one to see the rips and tears and missed spots in the light of day. A self critique, an effort to see all the flaws and improvements which could be made, a fine tuning of both one's thoughts and aesthetic. Words written and photographs published become static waypoints in a dynamic journey, assertions to be analysed and argued and changed if and when necessary. The trick is to not see them as or allow them to become endpoints.