I think this is the key point. Again, I see a lot of fear here of off-topic discussions and a lot of willingness to force the discussion to be “correct”. I don’t think it is a good way of managing the community. It shows the lack of trust to your community.
I see a good example with @amosbatto who positively contributed to a relevant discussion despite being a newcomer and could not even post all necessary proofs due to forums’ restrictions. Now, you want to restrict the users even more. This seems to be heading to less diverse discussions and smaller community. (I would like to note, again, that the topic was about hardware running Qubes, so useful to the community).
And this is another good example why those restrictions may not be warranted.
I would like to say that, despite the new category is not directly related to Qubes, it may still may be important to most/many Qubes OS users. What are the actual reasons to create all those restrictions and complications in the first place? Could we, for the sake of test, open such category for everyone for a month?