If this is not addressed at a _very_ early state of a software, it will stick, because people get used to it and you drive people away by backwards-incompatible

If this is not addressed at a _very_ early state of a software, it will stick, because people get used to it and you drive people away by backwards-incompatible changes. Especially if it's a software that's targeting people who wants things easy & fast, like Mongo did at the beginning. See reasons[1] for WordPress needing to be PHP 5.2 compatible, which had been out of support for 6 years. [1]: https://www.rarst.net/wordpress/technical-responsibility/ https://www.rarst.net/wordpress/technical-responsibility/