[kentiko]

It could be set with an allowed list of friends and family only. The idea for me would be to know if it's worth looking at my phone if someone I care about tried to reach me, or if I can keep my eyes closed a bit longer instead. I absolutely do not want an email or Slack messages counter, of course. But in any case, maybe you are right, and it's a bad idea entirely...

[shiroiuma]

No, I agree: I'd want some kind of app/webui where I could select which people I really care about, and the counter will show me if those people, and only those people, have sent me messages. So basically, my most immediate family and my girlfriend and that's it. If any of them send me a message, I'm willing to check it out.