Yeah, I don't think extra channels will help, we have github, the forums, slack and facebook already, we zoom and skype and have scheduled meetings, some of us even call each other :) I think on the communications front we are more than good.
The split of communication channels has been a challange and people sometimes put stuff on facebook that should be a github issue, and github issues for general discussions, etc.
Github should have: Actionable items, reproducible bug reports on current version, improvement and new features that have been discussed and are ready for development.
Facebook: General chit chat and social
Forums: Troubleshooting help on workaround, advices, questions, discussions, stuff that is indexed and searchable.
Slack: Chat between members in some workspaces and openhelp.slack.com that is open to anyone for chatting. This is very similar to discord and I think adding another thing that is too similar then where people are already will just make it so there is less people in each place...