I'm curious: how many Gen-Z (or younger) in your area know about online forums? In Jakarta, to my surprise, majority of kids aged < 25 had never heard of Reddit or Kaskus (which was the largest online forum in the country). I'm creating a forum (Discourse-based) and I have to tell them, "Like WhatsApp/Telegram groups" only then they understand what a "forum" is.
I'd be a bit surprised if I met a frequently only, English speaking person who didnt know of reddit. Reddit moderator is still a fairly common meme insult.
And im in communities with plenty of people under the age of 25.