Thinking about different websites...
The worldview of redditors is really Bronze Age or perhaps Iron Age in a truly interesting way. Deeply transactional, concerned with honor and commanding honor, with everything founded on property relations. The comments of any AITA post will evince this. It is "patriarchal" not in the sense of being misogynistic (which it sometimes is and sometimes isn't), but in the sense that it is structurally like the morality of the archetypal Patriarch of the isolated family unit, very Indo-European. The Man who rules his own little kingdom, his family, and who deals with other such Men through a certain kind of economically-inspired honor code. Most redditors are liberal enough that they deal with their spouses as other Men though, and indeed with their children once they reach a certain age. But I think even this has some historical precedent.
It's all about who has the Right to do what, you see, it's about who can and who can't and who must. Very Norse, very Bronze Age, very Indo-European. The redditor sees themself (actually or aspirationally) as on top and as agentic. They speak positively of learning hard lessons and of teaching hard lessons. Their world is a world of contracts, not abstract and mathematical but specific and personal.
This is notably not the ideology of 4chan, which anyone who's been on that site much should know. 4chan's ideology is much less confident in itself. The 4channer sees themself as beneath, not on top, either with acceptance or with resentment. Frantz Fanon might have something to say about it. The 4channer is the subaltern.
And here? I was going to say that tumblrianas are somewhat domesticated, but I don't think this is exactly right. It's more like the world-sense of eunuchs in a harem, desperate for stimulation. Scholastic (though not scholarly) and estranged from the world—from normalcy—for reasons they can't escape. And they know this, and have mostly elected not to try. "Eh", say they, "I will read about life in one of my books," or perhaps just as commonly "I will simulate an outside-life in here with the other eunuchs, and it will be better than what they can make on the outside anyway". Maybe that's true; it probably depends on you and your eunuch crew.
I don't think I'm any of these types of guy. I've spent more of my life as a lurker than a poster. Lurkers are a whole other type of deal.
This is of course all "bullshit" you must understand.