Maybe it's to deal with 'conflict of interests' issues. Although it won't be very successful in sifting out liars.
Would have been better to let you carry on answering questions and then allow your results to be filtered out.
"Maybe it's to deal with 'conflict of interests' issues"
I realize that was the likely (or plausible) motive, but that could have easily been addressed by asking the right questions. Amateurs...
Not only that, but the coverage of #3 id so broad that they're be doing themselves a disfavour by neglecting everyone.
Sounds like a bunch of fucking hammer chewers. If it were me, I'd cancel my membership and use the money more fruitfully.