I just created a community and default chat room for kbmod on Matrix. Anyone can join, its address is #kbmod:matrix.org (the community address is +kbmod:matrix.org, but I’m not sure if you can join communities from the address yet). There’s only one channel in the community at the moment but I can add more if it actually gets used at all. I use it, so I’ll be in there at least
For those not familiar, Matrix is like a modernized IRC with slack/discord like features. There are nice rich clients for it at Riot.im for many platforms, and plugins for other chat clients as well.