One might reasonably contend that questionnaire participation
qualification should be intent specific.
In other words, it depends on the questions.

It is obvious why the non-racing membership shouldn't have sway on the
RC's evaluation of race procedures; but on the other hand, the
question "Would the initiation of Club Class here in the US increase
racing participation?", assuming the definition of Club Class is
provided, could be given an educated answer by someone who hasn't
competed in the last three years--especially if a "Yes" answer coming
from such a person can be statistically culled as sign of increasing
interest.

Regardless, the answer to such a question is subjective personal
opinion from whoever gives it.

As an aside: The failsafe way to gauge whether or not Club Class
might increase racing participation is to poll every owner of a Club
Class glider (whether they be an active racer or not).

Ray Cornay
LS-4 RD