I'm so confused by the love of discord. Maybe I'm dating myself but Can someone explain to me why it's better than traditional forum plus some VoIP like teamspeak?
I'm almost 40, so I think I can explain this. Discord is turn-key community infrastructure for users and moderators. Bespoke solutions have more incidental complexities compared to Discord with regard to hanging out with others and playing games. This initial gravity is what is pulling in the rest of the Internet communities.
VoIP is not easy to set up and use in the best circumstances, and Discord makes it painless. I cannot stress this enough! Usually it took That Guy who spent days pouring over how-tos and several aborted attempts at setting it up. Discord is similar to what GameSpy brought to game server hosting compared to hosting a game yourself. If that sounds like foreshadowing, I agree!
Discord also is replacing the whole communication/coordination stack. Forums are a casualty for the same reason Reddit took over; setting up a public internet service is hard. But Discord steps beyond that. It is taking over the chat communications gamers use to coordinate, including text messages and AIM/IRQ/IRC/etc. This meshes very well with guilds and amateur competitive gaming, as well as the hangout vibe of sitting in a chat room. Throw in built-in video streaming and you have Twitch.tv functionality all in the same app.
Combine the above with a single unified moderation, and you have a critical nexus of features for community management without all the fuss of hosting the infrastructure yourself. Individuals have a single login that can access hundreds of communities, while moderators have similar management controls as forums over their own.
Are there downsides? Oh my yes, but those will manifest later as Discord matures into its own blow-up stage of venture capital social networks.