We use Discord for our community chat and meetups because it's popular amongst the art community, is feature rich, and it's free.
What is Discord?
Discord is an application that allows you to chat over text, voice, and video.
Discord is very similar to Slack. Discord contains different servers. PaperDemon is one Discord server you can join. And a discord server contains a collection of chat rooms.
Discord is free and it's supported on the web, has a desktop native app, and mobile native apps. Join Discord
Join the PaperDemon Discord server
After you create your Discord account, clicky clicky here to join the server