I've tried that. Turned out that most people took it as code for "friends with benefits" with heavy emphasis on the benefits and very little on the friends part. Which is ok for those who have that as their goal but a bit confusing for those who haven't figured out the code yet.

Yeah, I think the problem is that it’s clearly not the real purpose of the app. Even users seeking friends are sometimes seeking people who they may eventually date once they recover from a breakup.

This is a hard sell when the site is called OkCupid.