I don't think I'd want to know who the exact sources are but I'd like to know where they are distributed. At one point Theymos mentioned that he could envision assigning merit sources by board so there is a focus on different boards. Cruising around the forum over the last few weeks indicates that the Moderators are not participating in giving merit in each board...which is unfortunate.
The merit sources are not just moderators. From the initial ~35 sources the number quickly increased to 57 but has stopped there for some time. Which boards do you feel are underrepresented and is there anyone you could nominate to redress that?
What we've saved in spam we've gained in redirecting traffic to the boards that have more merit givers, i.e., Meta.
I don't see that as a bad thing. This is a huge change to the forum so the fact the people who maybe previously didn't care much for what happened are now involved in discussing it on Meta is progress of sorts.
Merit Social Hacking 101
1) Target Meta & Beginner Boards
2) Try to be the first person to respond to a decent post/question
3) If 1 & 2 don't pan out, attempt something comical
4) Add images if you are able or lots of links; if they are useful even better
5) Create 1-2 Topics in random boards daily that are solid questions relative to current market conditions
6) Be grandfathered into Merit points
Or in summary of 1-5: Use the forum as a place to discuss relevant topics and interact with other members. Number 6: Be annoyed I didn't get here earlier.