JFTR, I second the motion for an official Discord server. It could help bring together players from ITCH.io, Steam, and whatever other sites you're currently posting to.
Some channels I personally would suggest: idea submissions, community polls, bug reports, spoiler chats (new players ask vet players for help), and of course a general chat just for discussions.
Down side of course, would be that yes, it would take time to get setup. Additionally, it adds one more location where you will be receiving messages you may choose to read when not 'putting in the work'.