Bear with me for a moment.
Let's say ABP is making up everything. Let's say, for the sake of argument, that all his evidence comes from other peoples experiences. Someone else shot the bears, was attacked, etc, etc, etc.
How does that actually change the argument? Sure, you might get internet points because you've proved something about your latest obsession target, but how does that relate to the dearth of Bigfoot evidence?
The fact that there are bear attacks, that large and reclusive animals are routinely found, that every other animal leave evidence of it's existence, etc, etc, etc...all argue that Bigfoot is nothing but a myth.
I don't care about internet psychology, whoever does it. I care about evidence. And Bigfoot doesn't fit with evidence.
Both sides of your argument are massive red herrings. The psychology doesn't matter in determining the truth of Bigfoot claims. The evidence does.
Since when did you focus on irrelevencies instead of the main argument?
Oh, wait, nevermind.