The Rules (according to Graham)

  • Don’t use @here unless it is truly relevant to everyone in a channel
  • Don’t use @channel unless there is a fire or a nuclear explosion that everyone needs to be aware of now
  • Use targeted Slack group mentions for getting a hold of stakeholders in a channel (i.e. @support_ in the #support channel)
  • Use Slack as an asynchronous medium, not a synchronous one (assume people will not respond immediately, rather than the opposite)

Link: Why you shouldn’t use @here on Slack