Or…
“own your content“.
I recently discovered that my hosting provider mucked up my WordPress installation pretty severely. Granted, it was a multi-site installation, but it was set up in a way that urls kept getting re-written back to the base site, instead of sticking with the current site. This seemed to happen during upgrades and/or moving from staging to production. I only blame them because they handled the set up, but it was my fault for not automatically catching it right away. During the remediation process, I learned noticed my links to external images had died. Not just some of them, but every single one. The first key take away is that if you care about your site, you really need to check on it periodically, including searching for broken links. The other key take away is that you need to host any content you don’t want to go away.