On the other hand, norms in software right now are that suckers build and maintain software for free + "the love of the game should be enough for anyone", so it's shocking when people break the norm.
I'm not saying you can't find paid software, especially from Oracle and Microsoft, but there's a different expectation for "just-a-guy announcing his project on twitter".
You can see a similar mentality regarding Elm in general where the approachability of one guy had people in some sort of parasocial entitlement to the project that you wouldn't see if, for example, it were Google or an unknown who built Elm.
Which responses are you thinking of?