I think A/B testing would be unhelpful or even counterproductive because of the difficulty of picking a measurement to maximize. You want a flattering but reas

I think A/B testing would be unhelpful or even counterproductive because of the difficulty of picking a measurement to maximize. You want a flattering but reasonably accurate advertisement for yourself, which doesn't correlate with any easily gatherable metric. If you try to maximize clicks or emails, you run the risk of making your profile marginally more attractive to lots of people you aren't interested in at the cost of looking generic and boring to the few people you are interested in. You could reduce this effect by maximizing the percentage of profile views that result in emails, but it would still be distorted by people who mistake you for someone entirely different. If you maximize emails from interesting prospects, which is what you really want, it will take a long time to accumulate a useful amount of data.