As a remote-first startup (from day one), we were heavy Slack users. Considering moving to Mattermost, or any other alternative, caused many folks to shiver. But we switched. Why? Because of what matters the most to us: Permissionless innovation Control and visibility of our
Word of warning, I tested Mattermost quite extensively about one year ago, and it is very much open-core, meaning the open source version is artificially limited in ways that makes it extremely annoying to use for anything slightly more complex.