&gt; <i>... when open source projects opt to use Slack as their chat platform instead of IRC; it&#x27;s [sic] sends the signal that FOSS is good enough for us but not good enough for them.</i><p>It couldn&#x27;t possibly be because Slack is better than IRC?<p>I mean, come on. <i>Sometimes</i> there is a better closed-source alternative. I don&#x27;t know why FOSS attracts these people that think all closed-source software is literally the devil or whatever, but if you&#x27;re not using the best tool for the job you don&#x27;t have the best interests of the project at heart. For most use cases, Slack is objectively better than IRC. For a minority, IRC is better.<p>The dogma from the FOSS community is a large part of why many people are not involved in it at all.