In case anyone wants a TL;DW:
1. He doesn't put in over 50% financially. This means he's not stepping into his masculine role, not a provider, not generous.
2. If he makes you feel inappropriate for wanting commitment.
3. He's flaky, ghosts you, vanishes, is unreliable. If he does this more than once, he's a loser. If he really likes you, he'll move mountains. Men are spoiled today, so this is a common problem.
4. Lacks depth. Has no other interests than watching football, drinking beer, playing videogames and watching porn.
5. He lacks any form of basic gentleman skills. As in: holding doors, he offers his jacket, walks in front of her, selfish in bed.
6. He starts manipulating you. Getting aggressive when you put up boundaries, resistant to change.
7. Your in a serious relationship but he's a fuckboy who's still clubbing, partying and so forth.
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I think some of these could be grouped together. 4, 5 and 7 are likely symptoms of being immature and/or inexperienced. 2 and 6 are essentially gaslighting.
Overall, I don't disagree but that's because I believe women are allowed to have their standards. But I also believe women can have standards that are so delusional and/or entitled, they price themselves out of the dating market. I think if most women tried to follow this advice, they would end up disillusioned.