Going to sound horrible, most likely, but... the fact that you didn't know what anyone looked like for the most part. Which has done such an 180º since social media became a thing, it's not even funny. I suppose it's part of the larger 'when the internet used to be anonymous' sentiment many others share, but still, it is a point that annoys me in particular.
Be it a youtuber's face plastered in the corner of a video where it adds nothing to what the video's subject, or in some cases, detract from it (such as covering/shrinking the gameplay screen, or in art videos, cutting away from the art to show the artist talking in front of a green screen for minutes at a time, etc), be it checking an artist's page on X/insta and being flooded with selfies instead, to people using their real face on random forums... you just can't escape it.
I don't know why people feel the need to do it (Need for attention? Trying to form parasitical relationships with their audience in this increasingly lonely world? Just to show off their vanity? Ignorance at how dangerous that is, since social media lowered their inhibitions?), but it's almost inescapable. Not only does this go against my deeply held, old internet practice of never showing you face/real name/anything online, but again, it just feels annoying most of the time.
Which again, I aknowledge it sounds horrible... but look, I don't care what you look like at all. I don't care about your age, your gender, your race, whatever. And unless I personally interact with you and care about you, I don't care for your personal life either. I care for what you create, be it art, stories, videos, or what your thoughts are on a game or whatever other topic we're discussing. Whether you're the ugliest person in the world, or the sexiest bitch alike, is completely irrelevant. I am looking at your stuff for genuine interest and desire to connect to it, and slathering that content with constant flashes of your face, just makes you look desperate for attention and kill that interest in the first place.
This is coming from someone who never had an interest in celebrity culture either, so I know I'm the very, very small minority. But by everything that is holy, do I miss the internet before social media...