Sure. But how do we know that it will take a lot of time and attract a lot of people? This is why I am suggesting a test month. Have a look at non-popular subreddits. They are not full of spam and holywars, simply because there are few people. Why do you expect that everyone immediately comes to Qubes OS forums? I am ready to help moderating it, too. In case I don’t have enough trust yet, even without being a moderator I can explain to users what is (not) off-topic and suggest to change the direction of the discussion. By the way I am already helping Deeplow by answering questions of new users.
Another argument is that yes, probably some people will come for tangential discussions. If there are not too many of them, then such category would simply serve as advertisement of Qubes OS. Indeed, this operating system is practically unknown. It’s used by 35k people in the whole world, nobody around me heard about it, even technical people. There is some balance between “close every topic” and “open everything for everyone” and I don’t believe that forcing people to have level 2 is the golden middle.
Because the new category is not for every topic, it’s for tangential topics to Qubes, All around Qubes as I call it. It is being created to help Qubes users, even if it is not directly about Qubes OS.
That said, I am not the one to decide and I am open to the decision of @deeplow about the new category. I am just suggesting to lower the barrier at least to level 1.
Upd: @fiftyfourthparallel added your suggested name of the category to the wiki post, along with my comment.