So what happens if you don't know anyone?
Well, it says "open to... self partnering", so I think it's purely an option! Like... we'll all be randomly paired up, unless you specifically pm the organizer to request a self pairing. So... I guess not knowing anyone is totally a benefit, we can all meet new people together!
Normally partnering is done by the organizer and is based on many facts, including potential allergies, shipping preferences, and skill level of the crafters involved. Self partnering is usually allowed if BOTH people WANT to be matched. So if you don't know someone that you really want to craft for, don't worry! Pinkleo does a lovely job at matching up partners. I heart her.
...No, but seriously. She's my crafty-true-love.