Referrals have been added! You can go to someone's profile page to see how many people have joined Manifold that they invited.

You can invite users with a referral link to a group or the regular share button on a specific market also generates one. Each account can also retroactively refer someone by going to their own profile and clicking to refer.

I will resolve 100% to whichever answer names the user with the most referrals out of all of the answers.

Let's have a competition!!! Whoever does manage to get the most referrals will get a code for 20,000 Mana!! Hopefully this means getting all your friends to sign up :P But collusion to collect retroactive referrals is also acceptable. Good luck!