;-) no promises from me.
As a matter of fact, I proposed using Slack for the Inferno community but got even less traffic there than from IRC..., so I'm skeptical that Discord will do any better for plan9. As they say though, you miss 100% of the shots you don't take.
There's nothing wrong with IRC, I just wish there were a searchable log of the traffic since I don't personally have a long-running session.
And maybe on that point, perhaps mailing lists are the right choice.
Take care!
-joe