Dynamic range in social media and shovels versus excavators

A developer at today's Homebrew Website Club mentioned that they didn't want to have a website built on a particular language because they weren't familiar with the language and felt uncomfortable trusting their data to it. What if something goes wrong? What if it breaks? How easy will it be to export and move their data over?

Comp

https://boffosocko.com/2020/09/16/dynamic-range-in-social-media-and-shovels-versus-excavators/