When you have something important to let everyone know, try posting an announcement. Your announcement will be front-and-center in Nook Support Forums giving people a great chance to see your message. You may have rights to make an announcement in the entire community, or just in spaces or social groups you own.
Keep your announcements short and to the point. If you have a lot to say, include a link to a blog post, document, or discussion that contains a longer version.