There are a few problems with your arguments, but it's mostly that you aren't trying to see things from another perspective. You honestly come across as jaded,

There are a few problems with your arguments, but it's mostly that you aren't trying to see things from another perspective. You honestly come across as jaded, and only willing to see things from your own perspective. Email is not a great form of communication. Private chat has a lot of value. Being able to chat in real time is very very valuable. We use slack where I work, but we have always had a chat program of some sort. Having different chat rooms for different teams means you don't need to scroll through infinite chatter to get an answer, you can just ask it... and ask the right audience. Need to quickly see if you're platform is down? Hop in the OPS channel and see. Want to see what's up with CI? Hop in the Dev channel. Want to see if support is getting hammered? Hop in support... It's simple, easy to understand, and easy to use. It's searchable, and accessible. The other things you mention seem more like a culture issue than a tooling issue.