I finally got a response from David Li. He was unable to disclose any information about where the list came or who the survey is for (expected) but did say he would remove my contact information from his end. So if anyone cares to do so, that seems effective assuming the list hasn’t already propagated on.
I’ve done surveys before for $. For a large scale survey of this size, it takes time. Maybe won’t get paid for 60 days after survey period ends. Try emailing him and asking if there is a time frame.
Its interesting because if the $15 was given instantly they would of had more folks fill out the survey via word of mouth. The downside is it allows bs responses to be awarded. I think awarding the $15 while the survey is still open would be advantageous to get more participation but what do i know.