J'aime bien cette définition:
FOSS IS FREE AS IN TOILET
Nobody believes that a free toilet will be magically cleaned up and maintained, somebody has to do it, and that person would better get paid for it. [...] And yet, like toilets, as FOSS gets used by more and more people, it gets more likely that you will see obnoxious people that shit all over your commons and then complain about it.
(le texte en entier donne plus de contexte)