yes i do go straight towards validity. i dont come up with theories. i dont go for the guessing and speculation. i first go for the facts that are already there. bringing up all these hypothetical situations like the majority do is completely pointless. i go for the manga which already have the facts in them.
if character A is stated or implied to be >character B then thats what it is until contradicted.
i merely compare what characters have shown and if necessary use character statements. i look at character statements from a manga standpoint. an example is of hashiramas strength being a fairytail. how is hiruzens strongest hokage hype valid if the people that gave him the name dont believe in hashiramas strength?
and here's my answer to your example as a point.
Because everyone from Hashirama's time is pretty much dead save for a few, just like no one believes in the existence of SO6P because there are no reliable witnesses(kinda like how in real life we can't prove whether Jesus or his acts were real or not)? And we also know legends are not always as true as they are told in the first place.....
If Hashi was as powerful as people claim, he wouldn't have died. If Hashi regenerates instantly, wouldn't that mean that he also has eternal youth, meaning that someone must have killed him? And by someone, meaning a fodder until proven otherwise?
Using Manga scans to back up a theory still means it's a theory and can still be disproved. Yes, you can back it up with any amount of evidence and be well thought out, but that doesn't make it perfect. Plenty of good theories were proven wrong with a sufficient amount of evidence.
And my point is that you were indeed wrong at times and did make bad theories/justifications, but not all the time....just like I did and everyone else in NB because no one is perfect.