Want it? Give.
It’s great that (at least in this Western world) we have things called weekends. We also have time where we are not working. Some of us have (a lot) more of it than others and generally waste it playing video games or watching TV. I’m fine with that, but there is a limit I feel before it turns from “relaxing” into “slacking off”. You have to realise that you are part of a world-wide community. You are using something developed by people world wide and it is time that you gave back.
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On contributing to open source.