We did a few meets on the inaugural Western Caribbean. We did the "normal" Deck 10 sail away party, a Deck 7 aft "wine and cheese" party (several people ordered the cheese tray from room service, and others brought out the Boone's Farm), and a Palo's Brunch. The only one that was reserved was the brunch. One of the first people on board made the reservation.
IMO, it seems to work best when you have an active thread on the board. Our inaugural western thread was well over 1000 posts, and WDW Goose and Joe&Joanne were very active about getting us all together. Goose and his wife had ordered lime green tie-died shirts which REALLY stood out. About 50 of us had those on! Joe&Joanne made lanyards with our board names and our real names. Those were awesome! Our DD got lost before the lifeboat drill. Once we got her back, I told her if she ever got lost again to go to 1) a CM, or 2) someone with one of those lanyards and tell them she's TKD Lisa's daughter! Thankfully, she didn't need it, but it made mom feel better (LOL)!