This is backwards in more ways than one.
First of all, how do you know what it was intended for? It started with gaming, because slackware for gamers wasn't something that existed, let alone for free. I'm sure they always planned to expand in any way and direction they could. Surely the plan was never "we will only ever serve gamers"!
Forums require a specific sign up for every forum to post, but can be read and indexed freely. They also aren't a "live chat", provide no way to hop in a call and just share the screen for support (as an example). Answers take time, even for trivially simple questions. Ironically discord now includes and hosts forums. But for all of it, you only ever need one account. To be clear I hate this, too. Walled garden kinda bullshit, which they fully control.
But again, why and how we got here doesn't matter. Here we are. It just is. The "support history" and knowledge or whatever you want to call it, it's in discord. It's inaccessible unless you know it's there and where to look (which "server"). Being searchable by Google is just better for the status quo. Which we can't naturally change, no matter how much we want to or hate how it is. You can shake your first at clouds screaming "you're all doing it wrong!" all you want, and be right while doing so. The recent data/history is still on discord, not in forums.