I recall several times pleading with Messenger’s program managers to enhance the group experience in Messenger, including adding multi-person audio. At the time, the example scenario was for WoW players doing raids and to position Messenger to beat TeamSpeak. Of course none of that happened, but it’s exactly what Discord is about - multi-person chat and audio, being a replacement for IRC, TeamSpeak/Ventrillo and Skype, all at the same time.
The unfortunate point being, Messenger is just instant messaging, it doesn’t have the functionality that those using Discord expect, nor can such functionality be added without some sort of extra third-party software. If you use Discord and Messenger, you’ll just use both separately.
I like this too