My thoughts exactly. In fact, that blogpost seems more (much, much more) discouraging "open source contributions" than what author of it found discouraging. Because, you know, it makes me think like "Here, I wrote some little thing that isn't anything special, but still, somebody might make use of it, or maybe some novice programmer may use code as reference and pick up some tricks, and, anyway, github is free… but wait, if people eventually start using it and there will be bugs and feature requests and pull requests I'll have to merge and politely explain why I wouldn't merge something unless some minor stylistic fix wouldn't be made, and I'll have to answer all kinds of ridiculous complaints[1] and worry about if I'm not reinventing the wheel and looking silly on the internet[2]… and if I'll wish not to be distracted and work on something else, or go watch a movie and won't spend my time on that thing, people will think I'm a jerk and will write blogposts about it and… nah, unless it's really something important and I'm ready to work on it I'll better keep it to myself".

So that how I might think and would be wrong, as author of this blogpost is wrong. Because free open source is, well, free and open for everything and everyone, and nobody has any obligations to it, and you can never take for granted work somebody does for you for free, ever.

[1] https://news.ycombinator.com/item?id=8712035

[2] https://news.ycombinator.com/item?id=5106767