Your last sentence is pretty close to an ad hominem. The GP post is probably a troll. So why I'm posting here is beyond me. Maybe I'm bored.
Here's the thing. It's true that in a perfect world, you should have complete control of what happens to the stuff you post, just like you should have complete control over what happens to your body.
This isn't, unfortunately a perfect world.
Protecting yourself is a virtue, not a vice. And giving advice on how to protect yourself is not necessarily "blaming the victim".
Let me put it another way: to use some analogies that have been put forth in other comments, if there is a place in town where someone gets raped every single night, maybe two or three people, and you deliberately going to that place at night, alone... do you really think it's going to do any good to just tell whomever you encounter "don't rape me?"
When it would never have happened if you'd just not gone?
Protect yourself. Don't do stupid stuff. At the end of the day, you do have *some* control over your circumstances. Don't give up that control just because someone else does something stupid too.