I have made my opinion (a strong one) about my question on the Youtube subscriber count of bass players on Youtube.
Let's take a VERY prolific and multitasking our own TB member, JLoch86.
We have TAB, we have a standard notation, with visible fingering

.
Subscribers - 883.
View attachment 1067448
We have a seriously PRO, and also a TB member, Joe Hubbard.
Very interesting and important bass lessons from a Pro Bass player.
Subscribers - 3,011.
View attachment 1067450
Let's cut to the chase.
Let's take a look at a "Youtube sensation" - a bass player - Marta Altesa.
NO LESSONS!
NO TAB!
NO STANDARD NOTATION!
But...
Subscribers - 255,160.
(P.S. Views also - 7,783,224(!???...))
View attachment 1067452
Could ANYBODY explain to me that very UNUSUAL PHENOMENON of the SUBSCRIPTION count?
Are you, the bass players getting MORE INFO from Marta's Youtube Channel?
What's in that INFO???
The first one has tabs and notation for a lot of niche songs without the ability to download any of them. A lot of people want the download in order to not always want to play and pause with the recording --> very niche product
The second one has a title screen that looks like it's from the 2000's and annoying transitions. He makes bass lessons and there are a lot of bass lessons out there (Scott and Janek are the ones that come to my mind) , which is a very saturated market --> not as extrem but still a niche product
Now we look at marta altesa. She has a nice background that doesnt disturb from her playing, she covers songs really well with a nice tone, she looks like she is having a blast and she is pretty.
Due to not being learning content, her "niche" becomes a lot bigger (Davie504 also comes to mind). Now having a pleasent bass tone, and being pretty without showing waayyy to much cleavage, was at the time something new.
Sure there are some girls that showed a lot of cleavage and were mediocore, but some more descrete, pretty girl with awesome chops and nice looks was the thing back then.
Nowadays there are a lot more - and most of them have a rather small subscribercount because the niche is already filled.
Without a doubt, these three make awesome content, the ones for learning, and the other one for entertaining. The difference is the situation of the "market" (youtube saturation) and the presentation.
Joe Hubbard seems to be an extremly awesome teacher , but he seems to lack in presentation (bright, distracting background, 2000s style intro and transitions) - compared to other bass teachers.
JLoch86 also have awesome content, but the font ( red with yellow shadows) seems to cringy, and his songs are rather "niche" - and not really known among younger (10-20 years) bass players who just started.
Having so much content available you just take the ones that have the best content and the best presentation, and . A lot of factors play into success, but one of the most important is presentation, which Marta got ( no distracting background, well known songs, well dressed, make - up , and a good tone) , and which someone like Joe Hubbard despite awesome content doesn't have (strange transition, outdated intros, distracting background) .
I have no doubt that Joe Hubbard can have more subscribers than Marta (Scott's Bass Lessons have more), but presentation is extremly important.