I talked about this on HN a few years ago, but my friends and I planned to be this guy. In college we talked about all the money we'd make and how much we'd be able to donate. We all had a job offers for $32 - 42k/year. That was amazing! We were living on less than $1k/month in college. We had plans to give away 20%, 30%, or 50% of our income. We would barely even notice. Some of us even managed to do it for a few ye…
I think this is a really important concern. Btw, 5% is still quite a bit more than the average, so good work! We're attempting to overcome this worry through community and behavioural economics hacks. E.g. I take every opportunity that I can (like this one) to say publicly that I'm planning to give away the majority of what I earn, which makes it a helluva lot harder for me to back out. Similarly for Matt - it would…
It may be the country's Christian leanings that contribute to this, but to be charitable is seen as a virtue and absolute good in this society. This is not necessarily the case in other societies.