There are no direct effects, but there are indirect/secondary effects. For example you won't find OSS nagware/crippleware/popupware because any developer knows

There are no direct effects, but there are indirect/secondary effects. For example you won't find OSS nagware/crippleware/popupware because any developer knows someone else will just cut the annoying parts out. Or you personally may not program python, but you do benefit from using python programs.