Perhaps it's... "I'm involved in two other professional forums". I am not involved in the "profession" although I have a strong interest in psychology and behavioural sciences. Maybe even for the students here, it's a matter of lack of confidence in their ability or even the fact that they may not get a reply...maybe there's even a bit of that "Black hole" of communication that John wrote of. We all like to be "heard", validated at least. Just a thought.