I match myself 95%, which I think is a little high. I suspect I have been too equivocal in my answers, and need to go back and increase the importance of some of the questions that I care the most about.
The "QkCupid! FAAAQ!" covers this in a way that's worth reading:
... When we look at how each of your answers satisfied the other's preferences, we'll use these values to give our calculations the correct weight. Your match percentage with b is figured by answering the following two questions:
(1) How much did b's answers make you happy? You indicated that b's answer to the first question was very important to you. And that his answer to the second question was not. So we placed 50 importance points on the first question and 1 point on the second question. Of those 51 possible points, b earned 50 by answering the first question how you wanted. So b's answers were 50/51 = 98% satisfactory.
(2) How much did your answers make b happy? Well, b placed 1 importance point on your answer to the first question and 10 on your answer to the second. Of those 11, you earned 10 points. So your answers were 10/11 = 91% satisfactory.
To get a match percentage for you and b, we just multiply your satisfactions, and then take the square root: sqrt(91% * 98%) = 94%. This is a mathematical expression of how happy you'd be with each other...if these ... questions were the only things that mattered in a relationship! ...
Interestingly, I believe that this advice applies to real life even more strongly than it does here!
Q. Is there incentive for me to lie?
A. Definitely not. You could increase your average match score by picking answers that you think the average person wants to hear, but your matches just won't like you as much. Look at it this way: Ok matching is really about us sorting all the people by how well you'd like each other. By answering honestly, you'll find people who really like you best for who you are. Cheesy, but true.
For example, if you you don't work out at the gym and are honest about it, the people you'll match with just won't mind.