Not a historian but I strongly suspect self-promotion is not something new.
https://en.wikipedia.org/wiki/Leibniz–Newton_calculus_contro...
Once I entered the workforce I became less humble and self-promoted a lot more. I think this is because how performance evaluation and job promotion works at my employer and similar employers: people doing a lot of great work but without self-promotion are given lower ratings and passed over for promotions.
Julius Caesar didn't become dictator for life by doing a great job repressing the Gauls. He became dictator for life by doing a great job of talking about how bad-ass the Gauls were, and how hard he had to work to repress them.
“Are you asking about Vice President Biden?” McChrystal says with a laugh. “Who’s that?”
“Biden?” suggests a top adviser. “Did you say: Bite Me?”
https://www.rollingstone.com/politics/politics-news/the-runa...
1 - it's become so much easier and accessible, with twitter, blog, FB, IG, YT.
2 - your ability to promote yourself has great impact in your financial and career growth.
3 - EGO. Remember when you were the smartest kid in your high school and then went to university and realized, there are many smart people like you.
SV, is the next step above. Everyone thinks they're the next Steve Jobs, Musk, etc. until the start working with other smart peers.
You were once the smart kid in the family, high school, your university classes, etc. Then you come to SV and realize wow, so many other smart people here. I'm just another average guy/gal who was in my top 1% of my college or high school. Some of these peers are even more driven than me and they're great hustlers.
So you either accept that you're not so special, or you try to out hustle others for recognition.
True. But why has it become acceptable? We choose to use micro-publishing to brag. It's just as easy and accessible to publish your own bowel movements, but we haven't normalized that.
It's not the tech doing it by itself.