@ Bittty, if you choose not to vote, your vote is not counted. The participation rate of voters v. abstained can be calculated, and I suggested it in my compromise, but abstaining is not a vote. Including abstains in the total percentage is treating them if they are votes, which unjustly reduces the prevailing opinion of actual voters. Abstaining simply means- I read this and choose not to participate. In the real world you would only know how many abstained by the number of surveys not returned, or subtracting voter turnout from total eligible voter population- so it is strange to have a button to choose to abstain, but as I said correcting the percentages is a very reasonable compromise and if anyone wants to know the participation rate the data is there to calculate it.