I hear that planning a wedding is difficult. Not just because there's so many people that are impossible to please, and not just because it's a timesuck. It's also expensive - which makes the already-agonizing task of crafting a guest list all the more difficult. Who, praytell, is worthy of your special day? Generally speaking, it's close friends, family, and maybe a few of your colleagues, and they receive an invite and respectfully RSVP accordingly. Recently, however, Twitter user @barrybingb…