We have 13+ Discord servers, each with their offtopic/meme/etc channels. It starts to get annoying to manage. There is absolutely no need to have separate Discord servers for each server when we have a combination of 20 people truly active. Hundreds of communities with thousands of users have ONE server for everything.
My suggestion - we should combine all the Discord servers into one - the main one. Then, we should setup roles for the servers that we're interested in. When you assign yourself the role, you will see the channels for that server. If you unassign the role, you no longer see those channels.