We use Slack to support the open source development for Convox (open source PaaS). The main benefits are: Mobile client with push notification First class pho

We use Slack to support the open source development for Convox (open source PaaS). The main benefits are: Mobile client with push notification First class photos, files, code snippets Moderation tools Same tool for private organization chat Users that use Slack for the jobs seem to really like Slack for community support The downsides are: No invite system. Needs an hack app Unsupported use case for community chat Closed system. Exclusionary compared to IRC So far the productivity gains feel worth it. I can only guess Slack doesn't mind this usage will provide better public chat offering someday. A few people have given the same feedback about using IRC over Slack, however so it's on my mind. Would chatting in both work?