I'm inbox zero type of personality and my workplace is incredibly email heavy. Reply-All with far more people than need be present is commonplace and it almost feels taboo to remove someone. What you end up with in a situation like that is inbox overload, synchronous conversations in email and lots of anxiety because now I have 2,000 emails in my "inbox" and just the thought of categorizing them now exhausts me.
For that type of culture, I much prefer slack. The synchronous conversation can happen, you can choose to pay attention or not and, generally, someone will @ you if they really need your input. The one thing I wish slack had was a way to mark comments as "decision points", much like what I heard stride was doing. Hopefully that'll get merged into slack after the buyout.
I've taken up almost refusing to use email (I'm in engineering if it matters). I'll write RFOs and that sort of "report" portion via email, write HR, etc, or communicate outside of the company with it but I'll go days now without even opening my inbox.
I am absolutely up-front about it as well and mention it to my managers and other engs and a lot of them say the same thing.
Either the companies I've worked for over the last 10 years have gone more and more that route or the fact that I don't check email is causing people to not email me.
For that type of culture, I much prefer slack. The synchronous conversation can happen, you can choose to pay attention or not and, generally, someone will @ you if they really need your input. The one thing I wish slack had was a way to mark comments as "decision points", much like what I heard stride was doing. Hopefully that'll get merged into slack after the buyout.