I see what you're saying, but this is basically suggesting that Dropbox should have made a donation to F5 (a public company with an $8B market cap). I think th

I see what you're saying, but this is basically suggesting that Dropbox should have made a donation to F5 (a public company with an $8B market cap). I think there is a valid point you're making for smaller companies that are providing both open-source and commercial versions of software, but I don't think Nginx is a great example of that.