For what it's worth, you can respond to GitHub issues via the notification emails you get sent. That's kind of like a mailinglist. I've never really needed to

For what it's worth, you can respond to GitHub issues via the notification emails you get sent. That's kind of like a mailinglist. I've never really needed to interact with devs much, so I'm quite naive on mailinglists vs issues. The biggest thing I guess I see missing with modern systems is the lack of threading. What capabilities/benefits do mailinglists have over modern approaches? What functionality has been lost?