The long form of that community name would be “there are no questions too stupid that you can’t ask them here”. I get that the short form seems like it could be interpreted to mean the opposite of that. But it’s a common phrase that has over time slowly shortened to that, while retaining the original meaning. And of course, the only way to know that… is to know that. So, now you do know that, and anyone else that saw the explanation this time. Next week, it’ll be a different set of people that see it. But not entirely different, there will likely be some overlap.