My skin is pretty thick. "Don't share stuff about your private life." is probably the more pertinent bit of advice.
I think it's not obvious to women that men share less of such info "in public" because they often share such info with women, even women they barely know. I am often appalled at the degree to which total strangers overshare with me and just immediately trust me with info I really shouldn't be getting.
It took me an overly long time to conclude this is actually a behavior that's extremely problematic to be on the receiving end of. It helps keep women trapped in a private role (which people expect them to play for free) and helps keep them out of a public role (ie a role you would pay them money for).
In essence, people want me to be a shoulder to cry on and it actively prevents me from being taken seriously. They want me to play a wife or mom role and they expect to get that from me completely for free. I'm supposed to care out of the goodness of my heart.
It doesn't open doors for me to be trustworthy in that fashion. It closes them. It's an expectation of slave labor and it's nothing short of abusive treatment, especially when you consider I was also treated this way while literally homeless and going hungry.
That assumption that moms care for "free" is really an assumption that her husband makes good money and is providing for her.
If you aren't paying my bills or otherwise taking care of me in some kind of meaningful fashion, expecting me to "care" about you while you don't give a damn about my welfare and won't help me establish an adequate income is just shitty behavior.
And it's rampant. It's pretty much everywhere and from almost everyone. It's appalling.
Anyway, I've gotten better about figuring out how and where to draw that line (between public and private) and it's made life suck less. Onward and upward and all that.
Edit: It's late. I'm tired. I really meant to also make the point that women being deterred by ugliness on the internet is often a genuine safety concern and not them simply being thin skinned.
This is a real problem for women you that don't typically see for men.