There are a lot of lies and vicious rumors about women promulgated online, particularly by members of The Manosphere. If you're an average person who is unaware of the layers of the Manosphere, Wikipedia is here to help:
"The manosphere is a diverse collection of websites, blogs, and online forums promoting masculinity, misogyny, and opposition to feminism. Communities within the manosphere include men's rights activists, incels (involuntary celibates), Men Going Their Own Way (MGTOW), pick-up artists (PUA), and fathers' rights groups."
While manosphere groups often think they're giving their members pertinent advice that is only considered "controversial" because of unjust social norms, sometimes these ideas can ruin the lives of their members. One happily married man decided to make the classic move of asking his wife to get a DNA test to confirm he's the father of their baby. His lack of trust blindsided her, and when the test revealed what they already knew, he couldn't understand why she decided to leave.