If we could just get discord to <insert short feature wishlist> then I reckon the golden IRC days would be back with a vengence.
Likewise, everyone was familiar with the 'Prodigy' and 'CompuServe' icons on our desktops with earlier versions of Windows, but nobody used them.
In the Phillipines, Facebook is tied in with your mobile provider so most people only got Facebook (when I was there some years ago). Facebook is what some people there called the internet. Definitely a walled in garden, and definitely a strategy by Facebook to create a moat in some countries.
But the whole UX around using them is very very different.
And that is what matters for the normal user.
Just the list of lacking default features is quite long, like: predictable display of formatting, emoji, pictures, file sharing, voice chat, nested conversations/threads, chat history, different user roles, user avatars, etc.
And yes you can bolt all of this on top of IRC, but that doesn't matter. Defaults matter. At least for the common users UX.
And as long as the IRC standard doesn't include most of this points by default (especially chat history, avatars, etc.) it won't have another golden time.
Also no msg-commands as the default way to do things, programmers might like them, the common user doesn't.
>links medium blog post which can only be accessed behind a login