What I find most interesting in these posts (and you can find this same topic discussed ad naseum on an innumerable number of other threads) is that genuine aerobatic pilots don't ever brag about doing aerobatics in non-aerobatic airoplanes. They know the issues involved and they know what they should/can do in different types of aircraft. I take that to mean the people that actually know what they're talking about are not doing it. That ought to be reason enough for anyone else to do the same.
I always question the judgement of non-aerobatic pilots who claim you can do this or that in a C172 or PA-28. I think it's mostly ignorance and bravado talking and I'll leave it at that.
Pitts2112