"Yell" updates allow users to broadcast quest progress to other nearby players; this is useful if you're out questing since Questie will show objectives for nearby players on the MOB tooltips.

Yell updates are creating too much add-on message traffic; need to disable them in cities.

Party updates are still OK.

https://discord.com/channels/263036731165638656/263040777658171392/826614891929534514