I think it’s right to say that the survey was premised on the idea that there is no way to know the true nature of the EA population and no known-to-be-representative sampling frame. If there were such a sampling frame or a known-to-be-representative population, we’d definitely have used that. Beforehand, and a little less so now, I would have strongly expected the EA Facebook group to not be representative. For that reason I think randomly sampling the EA FB group is largely uninformative- and I think that this is now Greg’s view too, though I could be wrong.
I think it’s right to say that the survey was premised on the idea that there is no way to know the true nature of the EA population and no known-to-be-representative sampling frame. If there were such a sampling frame or a known-to-be-representative population, we’d definitely have used that. Beforehand, and a little less so now, I would have strongly expected the EA Facebook group to not be representative. For that reason I think randomly sampling the EA FB group is largely uninformative- and I think that this is now Greg’s view too, though I could be wrong.