Bitcoin is free software and any developer can contribute to the project.
The first: Code Review
Bitcoin Core is security software that helps protect assets worth billions of dollars, so every code change needs to be reviewed by experienced developers
I am not so sure that it this easy and Mr J Poon who's running the lightning network project won't answer his emails
and I once tried this "Open Source" approach with firefox and code related to google but they would not take the offending
code out.
My code for Bitcoin Core is only one line long so do you think they will put it in to the project for me
public static money MaxFee=1.5
// Miners that do not like it are free to leave because we have ten timed more than we need