There's really just a few basic things you have to do, then you can pretty much not waste too much mental energy on problematic women.
Yes, I know, wouldn't it be great if we lived in an ideal fantasy world where every woman is sweet and kind and great in bed with no character flaws or mental issues?
The main value I see in reading about other people's negative experiences is it keeps a man's mind sharp as to the harsh realities that exist "out there".
I say "other peoples negative experiences" and the harsh realities "out there" for a reason. Not because I haven't had any negative experiences. I chose to draw the line a long time ago. To set limits on what is and isn't acceptable behavior from human beings, and to not tolerate bad behaviors beyond a certain limit. The mistake most men make is not applying their standards of behavior they will or won't accept to women they find attractive.
As a result, I avoided a lot of problems, through prevention (not permitting certain behaviors) and avoidance (not getting involved with certain people or cutting off ties with people if needed).
The problems out there can quickly invite themselves into your life if you ignore the standards you have already. I used the stories people told me about their bad divorces and ex-wives running up bills and maxing out credit cards etc., as a warning and learned from other people's mistakes.
Sometimes here is what happens. Or what happened in my case. You avoid some of the mistakes you could have made if you learn where other people screwed up and tell yourself "That is NOT going to be me.".
You also make some mistakes. You may learn some things from stories but make your own mistakes. Maybe out of 10 things you could have learned from a story, you picked up on 5 or 6.
So you make enough good, smart decisions and a few mistakes along the way, and if Lady Luck smiles on you and the stars line up just right, you have a little bit of good luck. You dodge a bullet by accident. You dodged enough bullets on purpose, by making good choices and avoiding bad ones as much as possible, then Lady Luck steps in and gives you a freebie.
Luck only goes so far and that's why so many people are in nightmare situations, paying a third of their income or more to someone they hate. Some woman that was fun in bed for a while but they didn't draw the line. They didn't walk away when the warning signs were there. Or kept coming back for more punishment. When she showed what she really was, an angry, nagging, bitter shrew, these men stayed.
I think it is healthy for any man, even men in good relationships, to keep themselves sharp. To occasionally read stories like these so that they never fall asleep mentally, into some dull slumber, and start idealizing women. It is better to protect yourself and have fun along the way, than to be too trusting and open yourself up to a world of problems.