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more specifically the facts that a) men send way more messages than women, and b) more often than not it's men who open and women who choose
(the post isn't entirely clear whether "messages" means openers or all communication but the fact that they go on to discuss reply rates makes me think the former)
it's likely that many men message all the women they can in the range from "slightly below my standards" to "haha there's no way *she* would reply to *me*... but hey, maybe!"
(it's well-documented in both dating apps and bars female 7-9s get much more attention than 10s, because the latter almost all men see as unattainable)
whereas you might draw the conclusion the bulk of what women are doing on the site is just replying to a selection of the openers they receive
and that they send comparatively few openers but when they do they're targeted at men they see as somewhat better than them, desirable but also not unreasonable that they'd bite
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