It's a myth.
Just like any celebrity who has an ounce of depth, must also be an N.
Somewhere along the way someone started a rumour that S's lack depth and it snowballed from there..
It is of course, nonsense.
The raw statistics alone suggest that S's dominate in numbers EVERYWHERE, I don't see why here would be any different.
Especially because I know quite a few deep, sensitive, artistic, emotionally intelligent and philosophical S's who just love the internet.
What makes sense would be the internet is dominated by Introverts.
The Internet represents an abstraction to a large degree. Most early adopters of like technologies would also seem to be disproportionately Ns. Once the technology has been sussed out and mainstreamed, the Ss begin to participate more. But that's just an observation - not certain if any research has indicated otherwise???
I agree with this.
The internet perhaps "serves" possibilities and abstract exploration for N's, but for S's it's the real world that must be explored. Although there's also practicality involved, If I had to estimate the population of the internet, I'd say the average users at a significant period of time is 60% N and 40% S, which is in clever contrast to unverified estimation that there is 60% S and 40% IRL.
Then again, the Internet is a storage of concrete data---particularly media.
Do they happen to only be Ns on the internet? To be honest I wouldn't think so.
Ns like to go to areas on the internet to stimulate their intuition whereas S's go to areas on the internet to stimulate there senses.
So it's not surprising for a N not to see as many S's in the places they often go to on the net.