Very first line of the GitHub readme. As a support tool it's mostly useless, endless similar or identical questions answered differently or not at all and none of it indexed by search engines for use on the web.
It's an awful data silo / black hole that increases volunteer load.
I work for the UK government. Everything my organisation does is licensed in either MIT or OGL (https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/)
Developing code in the open really helps ensure you nail down your secure coding practices.