I’m almost guaranteeing that the person you are replying to is making a joke, because of how ludicrous it sounds. “I did not meet women in person, but I heard lots of them just hang out on instagram” implies that the commenter has literally never met a woman in their entire life and only knows about them via a website that they’ve never even been to themselves, as the information about them being on instagram is itself second hand. Like, it literally makes women sound like cryptids.