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.
You don't get it - it's not only about content, it's also about identity.
It's about owning your own domain such that links spread through the web (that also added to your ranking in search engines) will not be invalidated when shit happens.
Your content should be your property, including the URL as that's an important part of said content and comments too.
How is it that I don't get it? I can own my own domain and still use Google+ to power my blog just fine. I can automatically backup and store my Google+ posts in case Google goes nuts. In the process of backing up those posts, I can also store the Google+ ID so I can ensure that I can always keep my back-links intact.
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.