Yev you are one of the most Intelligent Trainers on here. You have to keep an open mind regarding training. Nothing is carved in stone. Heavy lifting fine but intelligently planned.
Thank you Donny. I think that those of us who train naturally have the potential to better understand training, diet, and recovery. We have nothing else to fall back on in order to make progress.
Progressive overload is the only way to grow as a natty.
"chasing the pump" and "squeezing" isnt gonna cut it
might not hurt time to time but you have to get stronger on a moderate rep range, as simple as that
I have always embraced this concept and I truly believe this is the key to continued progress for a natural trainee. It is easier said than done though. You have plateaus and sometimes injuries that have to be dealt with along the way. If you are smart about it, the plateaus will be short and injuries not serious. If you are not, you will simply burn out at best or have a serious injury at worst. I think that is why the failure rate is so high with this theory it is simply more complex than it seems.
Not sure. People tend to put alot of stock into body weight when it comes to being "fit". Personally, I'm 275#'s, but I do cardio in the gym 3 days a week, mountain bike and hike with my family on the weekends and generally lead a physically active lifestyle. Granted I won't be doing a marathon any time soon, but that's not what I train for, just like you won't find most marathoners pulling 6 plates. 
I agree with you, there are different ways of staying in shape. Would anyone argue that 100m sprinter is in worse overall shape than someone who runs a marathon in three hours? For some reason todays society puts much more importance and admiration for extreme displays of endurance rather than extreme displays of strength. Both have been plagued by PED's (although I think people were definitely more shocked about the use of endurance athletes).