99% of the population hasn't a clue what Discord is/does
As someone with two teenage kids, I would wager that this is highly age-dependent, and that it is exactly reversed the younger you go. My guess is 99% of the under-25 population uses Discord daily and has never had a Facebook account.
The majority of the population has no idea what the trendsetters are doing before it becomes mainstream.
But if you include other group msg platforms as the same thing (whatsapp, fb messenger, etc) i imagine most people know.
Which is likely why it's so good still. The usenet before the eternal September.
You probably mean, 99% of anyone older than 25.
Discord is the 'AOL (1990s)' of the 2020s. (clearly aspects where that fails, but as a social media?)
In the US this is likely a wildly high overestimate because a huge percentage of the population plays video games at least casually and it has a very large mindshare (if not necessarily daily use for everyone) in that domain.
Moving into things like sports and what we would've called the "general blogosphere" in 2010 quite rapidly too.
I kinda hate it since it's hard to discover, but at least Google can't direct a million bots to it either that easily yet...
Given that I recently joined a leatherworking Discord comprised of individuals pretty much the exact opposite of my demographic, I believe this is just plain wrong.
My guess would be near half, probably a 60/40 split.
I think the only people who don't know what discord anymore is the 50+ crowd. Atleast 50% of the randos I talk with online have discord as their preferred method for texting and voice communication and immediately want to switch to it if possible. And if older people actually cared about doxxing themselves with every conversation they would probably have a higher percentage too.