I'd love to see an implementation that uses "parasitic storage". There seem to be enough free places to post content now that it would be workable, especially if you thought broader than just things like Google drive. Throw in free blogging platforms, pastebins, free email + attachments, etc, and a bit of PKI (obfuscate) + redundant copies.
That would allow for real world use without having to rely on things like "pinning".
Couple years ago, a couple friends and I threw together something like that.
GPG encrypted messages with a huge list of fallbacks where messages got stored. (Pastes, private subreddit, Facebook via RSS).
The code was truly awful, but the premise was we just needed each others public keys, and all was good. (Killed the project when one of us lost their private key, and we realized hardcoding the public keys had been a terrible idea).
I don't think I have the code anymore, but shouldn't be much more than a weekend project if you stick with text only.
Blockstack 'Gaia' is a bit like that. But more focused on the actual storage services like Google Drive / S3 / Dropbox. Mentioned in the whitepaper: https://blockstack.org/papers
That would allow for real world use without having to rely on things like "pinning".