They talk about threads and asynchronous flow as being key attributes that make email better than Slack. I'm sorry, but those are both possible with Slack. I've

They talk about threads and asynchronous flow as being key attributes that make email better than Slack. I'm sorry, but those are both possible with Slack. I've replied to old messages long after they were sent and they're often in message threads. All the problems they claim Slack has, I think email has them too. I'd rather have those problems in Slack than email. Actually, I'd rather have them in Mattermost now these days. ;)