After creating my forums, I noticed that the RSS feed was disabled on only certain forums. I don't remember changing any settings of the node creation.
Why not just rename the top Category and assign the forums under the appropriate category. Then Create/Rename forum nodes as needed and then simply update their Display Order to whatever you want.
I just created a Test Category and I don't see the Discussion and Messages count under it like in your picture. I also don't have the 'bubble' graphic beside the category name.
Rather then us guessing, go to your "Applications>Display Node Tree" listing and in there you'll see what's a category and what's a forum. Report back...