Someone should just create a script to backup the content of Google+ posts on your blog. Could just save it the first time its loaded on the blog via the API with an option to manually trigger a resave on a post.

Sure Google could ban me, delete my content, or delete my account. But a competent hacker could write some code that did what I suggested and post it to Github for others. It would probably be less work (ok maybe slightly more) than setting up and managing your own Wordpress install.

Maybe I've found a new weekend project.