There are sometimes advantages of formality. The persistence of mails is better. I have never looked up something on Teams that is older than maybe a week. Mai

There are sometimes advantages of formality. The persistence of mails is better. I have never looked up something on Teams that is older than maybe a week. Mails aren't perfectly suited for documentation either, but I restrict Teams to day-to-day conversations. It is extremely hard to extract sensible information out of a chat. You could create a channel for every topic to keep things more tidy, but people would just spam their thoughts into the next random channel they find. So you would need moderators again...