In QoTW #51
Lotenfogle points out...
The only option I saw was to leave a comment, which is more permanent than suggesting an edit feature we have on questions/answers.
Stack Exchange posts aim at being the definite knowledge database for a specific topic, so they can be edited in case they're almost, but not quite right. Blog posts are rather more personal: they're the author's piece, so they aren't editable by just anyone.
A few people have the privilege to edit blog posts. (I don't have the list of users and their privileges.) If you want a blog post to be edited, you can reach the editors in chat (if you don't know who to ping, ping a site moderator) or here on meta.