Purpose of Slack: communications (I suppose)

What management uses way too many channels for: updates of ANYTHING anyone does on Jira or any pull requests created on GitHub

What would be useful to get notifications of, such as PR comments, isn't there

I'd like to get notifications of when *people* talk to me, as I like to answer them promptly, but these stupid automated updates on Slack just makes me mute whatever channels they're setup in