> now even open-source communities are happy in using Slack and JIRA That just means these systems aren't so hated that they have 0 users among those communiti

> now even open-source communities are happy in using Slack and JIRA That just means these systems aren't so hated that they have 0 users among those communities. There are open-source communities I no longer participate in, purely because of the annoying collaboration tools they switched to. Just because some people are happy with a tool doesn't mean everyone is. It means a few people in charge chose a tool, and they're implicitly selecting their community from the people who are OK with that tool. I don't know what the story is with Clojure that you refer to, but I've never had any trouble getting Clojure help on good ol' IRC. I've never left an open-source project for sticking with simple classic tools that work.