The point of these extra channels for me is that there are topics that can easily take up a lot of space and drown out more general interest topics. For example

The point of these extra channels for me is that there are topics that can easily take up a lot of space and drown out more general interest topics. For example, on my friend's server, we have one group of 3-4 people very interested in Magic the Gathering, and 3-4 people very interested in Genshin Impact, who can easily have 1000 messages on the topic over the course of a work day. The idea of people in the topic and in this thread is that people will enjoy the variety and read that and maybe get interested in Genshin or MTG, I guess, and therefore that channel should be rammed into the main space to keep it active and maintain interest. But what actually happens is people look at the log when they get a chance to read, see 100s of Genshin posts and go "Oh, not interested, don't want to follow back to find the start to see if anything else was discussed first", and so any discussion before or interleaved with these highly active topics get lost and the people interested in neither Genshin or MTG have little reason to participate in the server at that point. So the extra channels is not to form a hierarchy of topics for the sake of topics, but to give the more varied topics breathing room in the presence of the highly active topics.