Earlier quoted context omitted.
This is the kind of "it worked for my kid" bullshit that drives me up the wall. With my oldest we bought into comments like this and tried to always comfort him when he was crying. He would not stop crying. We stayed up with him an absurd amount of hours trying every idea in the book to soothe him to sleep and nothing worked. He was probably getting 6 hours of sleep a day at a time when he was supposed to be sleeping…
You're absolutely right that every baby has different needs and I'm glad to hear that you figured out what's best for yours. It was not my intention to suggest that every baby should co-sleep - I meant to address the very commonplace (IMO misplaced) fear that if they do, then they will never leave their parents' bed and develop independence. There are obviously some babies who are ok or even better off sleeping alone…
The parents you describe are a tiny minority if they exist at all, and guilt-tripping them in a public forum just hurts the millions of new parents who are at an extremely vulnerable time of life and trying to do the right thing. It's not your place to lecture on how loving parents should be treating a baby you've never laid eyes on.