Why don't you set that up? Go by low ratings on imdb for instance with some Trekkie-cred adjustments (we know what the consensus among fans is, after all). Then you might post that list and give everybody 5 stars/points that they can distribute among the entries (or ten overall?). So a hypothetical person that LOVED "These Are The voyages" can give it 5 stars. That way, I imagine one can measure to what degree people collectively feel whether a certain episode deserves the hate it gets, or is underrated.