@amberpep, Thanks for asking about when to start a new discussion and when to add a message to an existing discussion. I bet many members would like to understand when it's best to do what. While there are no hard and fast rules, here's some guidance to consider when posting a message.

1. Start a new discussion when you want to introduce a new topic with members of a group. Like you did here about seasonal changes.
2. Add a message to an existing discussion when you want to talk to people who are already discussing a topic and you want to join in.
It is also a good idea to post updates to an ongoing discussion you participate in, rather than starting a new discussion. If you started a discussion, make connections with fellow members, then post to that discussion. This sends an email notification to the people involved in that discussion. They will likely appreciate getting the update. If you start a new discussion with the update, the same people may not see it. And the new people may not know the history of your story on that topic.

Does that make sense?