Why are they asking you?
It is possible they are attempting to get you to make a comment they can provide to PURE for use against you.
I think I would just explain that those advocates who've demonstrated true concern for the children, and who in no way profit from the industry, will have nothing to do with PURE, or anyone who does.There is one possible exception to this. But for the most part, this is so, and all anyone need do to confirm it, is ask around.