Since you quoted my comment, I should probably give my interpretation of why I made it. Perhaps I'm wrong, but if I am, I think maybe the Help Center Topic should be made more clear.
The first sentence under "What Topics Can I Ask" says
"It's a questions and answers site for Ubuntu-related questions. It's also a place to share knowledge about Ubuntu."
To me, this implies that the question should be something unique to Ubuntu, not something general like the inner workings of Firefox, unless the poster has at least made an effort on the Firefox forum, and has some reason to think it is a question related to the Ubuntu implementation.
Otherwise, you end up diluting the forum with questions having nothing to do with Ubuntu, but a bunch of apps that many don't even use. How about questions about GMail? Google Maps? Heck, how about a Windows app that runs in Wine on Ubuntu? If there is a boundary, what is it? To me, it is whether the question could just as well be asked on a Windows or Mac forum, such as this one about Firefox inner workings.
Further down, it gets more specific, and says:
"Using and administering official Ubuntu flavors ..."
"Running third-party applications on Ubuntu."
Why doesn't it say Using third-party applications instead of Running? To me, I interpreted that as meaning things like the Ubuntu configuration, installation, etc of the apps, not the actual using. If this is incorrect, then that documentation should be made more clear.
If I want to know how to use Firefox, I go to the Mozilla forums, which has very good information about it. If I want to know specifics about how to configure VurtualBox, I go there first.
If someone has not been able to find the answer on the specific forum, and states that, I probably wouldn't object. But if this is just a catchall for all for questions on everything, then the people who really know about Ubuntu are going to avoid coming here, and it will degrade to a bunch of inexperienced people helping rank beginners who can't figure out how to use an app, and those with more complicated questions will just have to find a better place.
And by the way, it seems to me that immediately accepting the first and only answer to a discussion within hours of posting doesn't really show an interest on your part in promoting any meaningful discussion, so I feel I'm probably wasting my time even posting this.