The community forum and the DO calendar go hand in hand...or are meant to. Sometimes its not feasible to read through all of the threads in the community forum if all you want to know is "whats going on where" on a certain weekend. It was attempted to have one thread where all events were listed in date order, but it became too monumental a task to keep up. Unfortunately not everyone uses the calendar function for everything they've posted in community...myself included. Perhaps a sticky reminder would be in order in the Community forum to post to the calendar once dates and venues are set.

The itineraries function is more to see if you have another FTer on a flight with you as opposed to actually wanting to set aside time to meet up with one.