I'm the one who picked Slack over a decade ago for chat, so hopefully my opinion still holds weight on the matter. One of the primary reasons Slack was chosen

I'm the one who picked Slack over a decade ago for chat, so hopefully my opinion still holds weight on the matter. One of the primary reasons Slack was chosen was because they were a chat company, not an ad company, and we were paying for the service. Under these parameters, what was appropriate to say and exchange on Slack was both informally and formally solidified in various processes. With this change, beyond just my personal concerns, there are legitimate concerns at a business level that need to be addressed. At this point, it's hard to imagine anything but self-hosted as being a viable path forward. The fact that chat as a technology has devolved into its current form is absolutely maddening.