I hope i am not dating myself but y’all’s remember Chilton Total Car Care Books? Back in the day you had 4ish popular options, chilton/ forums / magazines/friends / local shop. I feel the vast of wealth and people with 1st hand experience was enormous. Due to having to do it yourself and actually have to read and figure it out.
Then YouTube and social media pop up and now everyone is a ASE cert mechanic, premium tuner, or car expert.
Reality is probable between broke Joe in parents basement & an over zealous backyard tent joe (on the spectrum of car knowledge). Digging deeper into Channels and peoples media links it’s becomes apparent.
Hate social media, funny the reaction you get when you tell someone you don't have FB, Instagram, etc. The is a good 2+ seconds of silence and a fuuny look as if im ET.
On the plus side most of the factory manuals are now online.