That's a good point. I'm building up the mailing list before making it available to developers for self-serve, but when I get to that point I'll have an expirat

That's a good point. I'm building up the mailing list before making it available to developers for self-serve, but when I get to that point I'll have an expiration date of 24 hours on each code and the user will need to claim it before then -- if unclaimed after 24 hours, it will be re-raffled to another user. A user can also "decline" immediately if uninterested.