Maybe navigating is the wrong term. It’s just impossible to find stuff relevant to me on discord. On any given larger server, there may be a few channels I could be interested in - but they are just a single chat log, often with lots of off-topic spam, and many different people having almost separate discussions at the same time. On any given larger phpBB, stuff is mostly separated into different threads with all the off-topic posts being delegated to a single thread. It’s better searchable and better organized.