Years ago, I spent a lot of time providing free Mac support on IRC, back when Dalnet was busy. Occasionally there were issues that took a huge amount of effort to resolve; in one of the few cases I still remember, I learned enough Cocoa to answer a newbie programmer's question. There was a small but dedicated group that all did the same thing, and other channels on other networks full of volunteers doing the same.
StackExchange is a huge network of volunteers helping to answer other people's questions, for no (real) compensation.
They might not be fun for you, but I think there are plenty of people that just like to help other people.