When I try to link using the command, it brings up Discord linkage with the Discord server instead of with forums. Too lazy to get on and post screenshots, but I assume that either forum linking was disabled or broken and no one has pointed it out yet. Either way, it does not work.
Multi-paper, as described by Flip himself, does not have much support for plugins, especially the custom plugins developed and used by the Network. If OG were to use MP, the devs would have to recode a lot of plugins and it's not worth the resources or effort seeing as the server only has 110...