To make it easier to ask for favors - it would be helpful to know whom to ask for favors as well as what specifically to ask. The issue with making it more socially acceptable is that people normally go to the "experts" for very easy favors so they get lots of requests and people with slightly less knowledge might get less request.

Here's an idea - have me tell you what the request entails (programming, personal finance, love, money, etc) and then search through the meetup api of groups that have those key words in them. Now you return to me a list of people on meetup who belong to groups that contain people I could request a favor from. As long as it's in their interest area and you help me write a nice email, you can get me started.