I'd hardly call it a killer feature when it's something Teamspeak, etc have had for ages. The killer feature, i.e that which sets it apart from the rest, is the rich text chat and that it's free.

I thought the killer feature is that it is free and convenient. No one has to do any work to setup a server like with Teamspeak or Ventrilo. It has been a long time since I played video games, but back then those were the two popular options.

> A killer use of Discord... push-to-talk audio connection to everyone else in the room.

Slack just added this recently: https://slack.com/intl/en-de/help/articles/4402059015315-Sta...

I experience them as very different.

Huddles are more like the audio calls Slack already had, but without the channel notifications.

It lacks the auto silence that Discord has, so you can't just hang in a huddle waiting for someone to talk. There's a constant hiss.

I guess they might change it, but didn't sound like this was something they were even thinking of as an issue when I spoke with a representative.

Telegram also added this a few months ago.