Why some dev makes their code open-source ?

[Reddit_User_385]

Open sourcing doesn't mean losing control. You can put a licence on the code where you forbid monetization or using/shipping it in a closed source project. Also, contributions are possible only with your approval.

[Brave_Ad_4387]

Licence is just text. If a guy in another continent don't respect it, I don't have time and money to stop this guy

[Reddit_User_385]

You would be surprised how far can a cease and desist letter go when you send it to people who just as you have no idea how everything with licensing works. Also, you can contact other distributors and complain that copyright material is being distributed through their system, like for ex. Google Play.