BackPacker:
Your recent post is capable of misinterpretation and could mislead the inexperienced. For the avoidance of doubt, an aircraft is either approved for aerobatics or not, and the approved manouevres and limitations will be listed in the flight manual. It's not just a matter of the structural strength.
No responsible pilot would advocate aerobatics in an aircraft that was not so approved; I'm sure this is just down to choice of words.
HFD