You say that as if using the site operator is the only way to do it, which it's not. Most people can figure out that just adding the name of the forum to their query is often sufficient. And this is often how people find forums at all. If you're googling for something in general and not looking for it on discord, you won't find any discord chats. You might find a forum though.

Also, your at worst scenario is a bit contrived. There's plenty of ways to not get an answer, to get a wrong answer, or to be berated by gatekeepers because "you don't actually want that".

It's still the internet, don't make it out like discord has somehow changed that fundamental fact, because they really haven't.