Comment by EGreg

Basically, if you rely on some external computers owned by others to do your work (API, external platform, etc) they can pull the rug from under you, or change the rules, pricing etc. They can misuse your data and more.

That’s why I built these open source solutions, so our customers can know that it will never change, THEY choose the hosting, THEY own the data, they can even hire a different certified developer or agency to add features or maintain it. They have all the choice, and they have a direct relationship with all their members.