I had to edit my post after reading your reply. This is how it should have read:
The easy answer would probably be that they have become multi-millionaires by virtue of being early traders therefore have better things to do with their time than be here but we do not know.
Many of us have asked the same question: why have nearly all of the donors and VIP donors who gave 10 BTC and 50 BTC respectively.
Because when they did, they were easy values to give.
It was people who were able to mine around 50BTC per day or per week. So offering 50BTC didn't seem like a very high value.
Honestly, these values between 2010-2012 don't shock me. If I had gotten into Bitcoin early on, I probably would have donated a similar amount.