Regarding Slack’s attitude about technical users whose life this disrupts, I can see that the calculus may appear to favor the non-technical users: there are probably far more users who have no idea what Markdown is and never need to share code snippets on Slack and who are happy with the new wysiwyg editor since it’s closer to what they get from MS Word and Gmail. However, technical users have massively outsized influence over the choices of technology at most companies. The IT dept is full of technical users who share code fragments all the time. Don’t you think they’ll be keeping an eye out for new chat platforms after this change? Tech startups are (almost by definition) mostly technical users. Do you think any new tech startups will willingly use Slack after this change? Some of those would have been paying customers and a few of them would have become huge paying customers. Now they won’t. I know I’m actively looking for alternatives now and I have controlling influence over what gets used in several paying and non-paying Slack instances.