I appreciate(and it only took me 45 years, from age 17) I am somewhere on some "spectrum" of abbynormal, in my poor friendmaking/male bonding skills, but apparently better than average injury avoding skills**.
To me, entirely untrained as I remain it it CLEARLY obvious that the chain must be kept sharp, and moderately loose, O.K. I only run semi chisel, but I keep it sharp, that way the chain rarely needs re-tensioned and the sprocket and bar last for ever, because I only ever have to "tickle" the log and the saw wants to cut, so no forcing/bruteforce, which allows for better relaxed saw control. I would also attempt to keep my body out of any likely line of kickback, if I forsaw the likelyhood of such occuring.
I also always simply and intuitevly understood tension and compression and their effects on a tree or log.
BUT
I have unfortunately observed "trained" chainsaw abusers who brutally swing on the saw because they could not sharpen the chain, (i.e. they run to the local saw doctor to get the chains sharpened, each and every time) and could not understand that cutting asphalt was a job for a concrete saw, etc etc etc. I have also observed in mute gobsmacked awe some of the sad saws brought in, by both hobby and "professional" users, for attention at the local dealers, WTF! I bytimes had cause to wonder.
But I am not seeing the well maintained saws cos those blokes dont be bringing them in for attention.
I have also observed blokes that can make me feel downright inadequate with their chain sharpening and saw skills.
Which is to say I mostly recognise my limitations.
And I have the luxury of not working under pressure or attempting to make money off running a saw, while physically exhausted. Which is a very significent factor in otherwise inexplicable mistakes or accidents
Unfortunately Dunning and Kruger were also correct when they postulated that stupid cannot be fixed.
P.S.
The Army is probably a bit of a contributor in offering young(ish) fit blokes who love working outdoors, the opportunity to "train" as chainsaw operators, for their post Army life. These blokes are not necessairly best suited to weilding a chainsaw, just because the feel like it or imagine they are Gods gifted chainsaw operators. "Two up and bags of smoke" does not always be the best tactic outside of the military.
Sunday morning ramble over.
N.B.
**Injury avoiding skills, yes, I make mistakes, properly fornicate things up and break stuff, and hey I sometimes even learn something from these experiences, but "stuff" can be fixed, or scrapped, my body not so much.
Marcus