Interesting, but if the information's public, that's a no go. Nobody wants their personal information out there. And seeing all of the information before you submit your own profile is problematic, especially if the algorithm's known and reproducible. I'm afraid you'd have a system where you could declare "a great match" to any targeted account for the cost of $1. Worse, you're now snagged in the canonical smart contract problem: you can't fix problems in the algorithm anymore. How do you tune the dang thing after release?