Regardless about how one feels about add supported apps, or whatever, the amount of virulent hate towards the guy for wanting a free app is just... sad, i think, is the best word. The guy even made a decent point about people who might enjoy doing things for free, he just said it in a somewhat dickish way - but that can be explained by language barriers.

At the end of the day, paying for apps is about far more than just supporting developers. For instance, I will gladly support developers who make their creations open source (even if they still charge for it on an app store), and less so, but depending on circumstance, closed-source. I also like to support the Humble Bundle and similar payment approaches, which are, as far as I am concerned, the much more ideal future of digital good selling.

At the same time, I often have no desire to pay through organizations like PayPal, which I dislike, and honestly, if I could, I would boycot the credit card companies as well. As stated by HerpDerp, sometimes people want to pay but can't. Sometimes they don't want to pay but it's about greater social issues than supporting developers. Sure, a lot of people are just dickishly interested in getting thing for free, everyone else be damned. But you should consider the entire range of possibilities, from people who are like that, to people who want to pay but can't, or people who might prefer to ask around for a free thing just in case there is one, to people who's ideas about ethics and morality keep them from paying in a given circumstance.

As for myself, I have see a lot wrong in the way software selling works. I very strongly believe in an ideal of open source and generous donations (as is when I can, I like to donate in $20 or €20 amounts; if I wasn't a college student and had sufficient spare cash, I would be donating to a lot more people, more frequently, possibly more money). When that's not an option or undesireable, I believe in pay-as-much-as-you-want models with very low minimum payment floors. And I will personally often not use programs precisely because they require payment in ways I don't like.

But what I don't do is flare with vitriolic rage at developers who choose to make their software paid, or demonize them (either in my own throughts or in discourse with others) as all being greedy unethically selfish people - which is exactly the kind of flawed reasoning that the hostility towards the OP displays.