Firstly, let me thank you for your efforts. I will occasionally pop up on IRC but not very often. I don't know all the command but a decent IRC client takes care of that, so I see the use of a service like discord.

I also see the point regarding fragmentation of the user community (or what remains of it) as a potential issue. I can see an issue with having to send people back and forth to different services to get answers putting off potential new users.

So the way I see this going would be to use discord/ServiceXYZOfChoice as a test bed. Get some feedback, have a look at benefits and drawbacks after a defined period of time testing. Are we getting new members either only on discord, tmo or both? Are we getting feedback regarding issues with discord features or usability? Do we have cries to support SomeOtherService as well/instead? Can we consolidate services using a Riot.im service running on maemo.org?