NSPN has typically left organization and communication about a trip to the organizer and participants. That means that both need to take responsibility for communication. A trip organizer (if they want an organized and well communicated trip -and they can decide to what level they take that) is responsible for communicating the trip. It may be that they just have an idea and they are looking for participant input, so there are a lot of details to work out, or they may determine every single detail about the trip, or they may just post a location and time and they don’t care who shows up. Either way, a participant signs on and becomes responsible for ensuring their participation in the type of trip ( which comes along with the communication plan). This may mean they need to follow a forum thread to ensure they know what’s going on, it may mean they have to follow an email, it may mean they should ask what the communication will be, but they signed on so they took some level of responsibility for ensuring they have the information.