In my experience, the behaviors you say are typical aren’t typical at all.
Cryptic? Maybe. But misdirecting? That’s wrong and dangerous. I have been helpful (and been helped) many more times than hindered when encountering other hunters.
Likewise, I’ve never been asked if I’m hunting alone. If I were, I definitely would want to know the motivation of whomever was asking.
I don't see how it's dangerous to tell a stranger that I haven't seen any elk in a particular area even though I know there are.
If you need help (flat tire, lost, packing game) I'll help you. If you expect me to help you by sharing my knowledge about game movements in a particular area, you're crazy.
If I run into you in the field the first thing I want to know is if I'm going to keep bumping into more hunters in that area. I'll ask if a hunter is alone or in a group and if they are in a group where the other hunters are going. That way I can try to avoid them and/or head to a less crowded area. It's also one of the first questions other hunters ask me if I don't address it first.
In my workplace I have observed that the women hires get a lot more help and instruction than their male counterparts. I could conclude that this is due to sexism and the women are getting better treatment or I could observe that the women tend to be more open and ask more questions than the men. The result is they get more facetime with those who can support their growth. I think that most of the experiences shared in the article are being made by people who are choosing to focus on one aspect of the interaction and not all the other factors that are also at play.