Why? So I or someone else can use https://browse.feddit.de/ to find any interesting communities they may have and opt us in. I'm adding us into tons of cool leftism related stuff, but there may be some I miss. A list of who we are opted in with would help, as any announcement when we opt into another instance in the future. I am happy to do the work, I just need to have some extra knowledge to do it more efficiently.