Hey now, I think I have as much of a sense of humor as the next guy. Of course I am only a pretend Hamlet.

I have to admit that I have never heard of this method of research. I have to wonder how valid results can be with the subjects aware that they are being photographed. There is a rule in an area of science I am more familiar with (research in 'hard' science; specifically chemistry) that the very act of measuring a property of a system effects that system. The method proposed here seems especially intrusive in that sense.

I also would not be comfortable with sending off photographs of myself either. There's a reason I use a fake screen name and an avatar instead of my real name and photograph, even on a presumably benign group like this.