Do you think that giving someone an artificially inflated OKCupid match really rises to the standard of an unethical experiment though? OKCupid doesn't tell you who to go on a date with; they just suggest potentially good matches. (Right? I'm married and don't tend to troll dating sites, but that's my understanding.) You're free to read their profile, exchange messages, etc., before arranging a date. If it is indeed a bad match, then most likely you would realize your incompatibility early in the process.