I disagree with this. Most people use FOSS and do not give anything back, individuals included. The spirit of FOSS is creating things that others will use without compensation. If I release anything open source, it's because I'm donating it as a whole to humanity, including big corps and individuals. I understand that, because I've thought long and hard about what it means to release something with, say, an MIT license. It means you lose having full control of your creation. If I wanted to limit who can use my software, I'll sell it or license it accordingly. Complaining later that your FOSS software was "stolen" or "exploited" or whatever is just sour grapes.