What's the point of that?
not voting does not give constructive feedback.
Doing that is kinda like not voting in the elections & then whining coz the ANC wins....
How is indicating you are indifferent with regards to the rep system constructive feedback? RPM needs to determine whether to boot the thing or not. It's a yes/no question.
Put differently, if 100% of forumites voted for the indifferent option, what would RPM need to do? The most constructive feedback in this case is either yes or no.