Please don't use Slack for FOSS projects (drewdevault.com)
recommended by 1 user | 2015 | 886 points by ddevault | messaging | original thread |
One user recommended this thread. What they said:
scrollaway Nov 16, 2015 | on: FastMail: Shutting down our XMPP chat service | context

Two insightful previous discussions about XMPP:

https://news.ycombinator.com/item?id=10280155

https://news.ycombinator.com/item?id=10486541

I'd highly recommend people read through them, especially if you're interested in fixing the issue.