During registration, it took me about ten guesses to get the exact place and phrasing, which included enduring a timeout. If you want to keep the members absolutely minimal, you should keep it as is. But I suspect you lose a great many non-robot applications, whereas a much simpler question would surely suffice.
Fair enough.. and thanks for the feedback. I have changed the security question asked during registration to one any human should know.
For the record, we have spent many hours fighting the spam bot registrations that have occurred on this forum (and every other web forum). Once registered the spam bot programs usually post links to porn sites or advertise something or other crap. The security question that we now use during registration seems to stump most of them.