A few years ago a single person would have donated 50 BTC, but it would have been worth so much less in USD.
Over $20,000 is great and it will help Dorian a lot.
An old post I've found on this forum, which applies quite well to your statement:
Satoshi, I figured it will take my modern core 2 duo about 20 hours of nonstop work to create ฿50.00! With older PCs it will take forever. People like to feel that they "own" something as soon as possible, is there a way to make the generation more divisible? So say, instead of making ฿50 every 20 hours, make ฿5 every 2 hours?