If you release your software under copyleft, and someone else can't use that in another project because they chose an incompatible license, the "hindrance" is entirely their fault, not yours.
Now if someone takes your permissively licensed code and makes it proprietary, THAT is a real hindrance to users of that software, and while it may not be your fault directly, you had the power to stop it because you are the copyright holder and could have copylefted it. So permissively licensed software actually has more potential than copyrighted software in allowing a license to "get in the way."
Now if someone takes your permissively licensed code and makes it proprietary, THAT is a real hindrance to users of that software, and while it may not be your fault directly, you had the power to stop it because you are the copyright holder and could have copylefted it. So permissively licensed software actually has more potential than copyrighted software in allowing a license to "get in the way."