So, it's clear that a small subpopulation is preferentially tweeting links to sources of misinformation, and for many users, they're the most significant source of exposure to these sites. So who are these people?
They're a bit more likely to be female. While both the comparison groups were roughly evenly split between male and female, the superspreaders were 60 percent female. They're also older, on average 58 years old, nearly 20 years older than the sample as a whole. And, while much of the misinformation about the election largely circulated within Republican circles, only 64 percent of the superspreaders were registered Republicans (nearly 20 percent were registered as Democrats).
Before that it was fliers and classifieds in the paper for groups to meet up and discuss or have mailing chains.
Although, I would have to admit that back when people who wanted to gather around a single idea had to make an effort and have leadership and infrastructure, you saw a LOT less bullshit nonsense in the world, people just kept their shit to themselves most of the time and it was a little better.
I'm going to guess a big part of the reason that older women spread misinformation more than older men do is that women are more chronically online at that age as opposed to trying to be active and out of the house, and/or less likely to be employed and therefore have a lot of time on their hands with no kids to take care of now that they're all grown up.
I think you're right - women are also socialized to seek out social/interpersonal connections more than men; this is a big factor in why the suicide rate for elderly men tends to be significantly higher than for elderly women.
This doesn't explain the 60 year olds but with the elderly (70+) women in my life, the vulnerability to misinformation is also an artifact of their comparatively poor levels of education. They were schooled with the expectation that they would be SAHMs.