I think making sure to have a backup of your important content is always necessary. Being able yo conventiently port to another service, less so. I'm less concerend about the real risks of me flagged as some deviant, as long as I can pick up my data and give two fingers to the company that behaves in an unreasonably poor manner, im good.

realistically, our wifes and family will almost never make backups, and probably most of us hackers either, it ll stay on todo or as implemented but now broken script.