If you've posted five times in a year, and the last one sounds like you've decided your blog is obsolete, then it's not an instance of somebody abandoning a longrunning thing. It looks like somebody gave the service a few tries and gave up.
People often "give up" on a site a few times before they become a regular user. I do this all the time; For example, I signed up for HN "675 days ago" but I think I might have made 1 or 2 comments in the first 200 days.