I really hate the implication that end users are obligated to pay or "tip" open source developers. How can a software developer be butthurt that he didn't make

I really hate the implication that end users are obligated to pay or "tip" open source developers. How can a software developer be butthurt that he didn't make money off his product when it's his own fault for giving it away for free? Every organization you listed would have gladly paid money for the requests package, had the author not chosen to give it away for free. Just like they paid for MS Office, Windows, Photoshop, Oracle, and countless other software products. It's almost embarrassing that there are software developers so clueless that they'd give their product away and then whine about how they need money and deserve to get paid. Not that I'm implying that's happening here. It's so silly that open source advocates will demonize Oracle, Microsoft, Apple, Adobe, ... for making money off their software, then turn around and whine that they're not making money. Who's fault is that? Nobody forced them to opt out of the economic system. I release a lot of my code as open source under a very permissive license. It's perfectly clear to me that anybody can take my code and use it to make a ton of money and not owe me a dime. If I weren't okay with that, I wouldn't release the code.