One important point to make about Taconite and your examples are I cannot comprehend how any of it could remotely relate to work; management needs to write them up and fire them not because the victims were women or it somehow had something to do with sex but because the workplace is apparently completely out of control. This isn't some pie in the sky daydream, this is decades of observation at a variety of F500 companies in the midwest.
The problem with some jerk harassing female coworkers with .. full stop ... harassing coworkers comma, is he's not doing his job, and he's preventing others from doing their job, and the only mystery is why that problem is not being taken care of at that level. Its not pass the buck time, why didn't some dude in another department find some hairbrained technical scheme to try to temporarily stop the nutcase from bothering people... he's got a boss who's already responsible for that task.
Is this one of those weird coastie vs heartland type issues where we have real bosses so coastie stories sound weird, or ...
That's the crazy part of the story. If the boss simply doesn't care, then blocking certain pix on port 80 is merely going to result in your example of hanging up pictures, or carrying in zip drives, or whatever, obviously the boss won't care about those either. So the net result is a huge waste of time and money for ... nothing?
I would think there's some CYA going on if you know there's about to be another 3.5 million dollar "taconite" type lawsuit filed, and its going to be a slam dunk, whoever it is ordering hairbrained technical solutions doomed to failure probably won't be punished as hard as the guy doing the harassment or his boss who doesn't care, or his bosses boss. But a legal hit like that means tune up the resume anyway, its not looking good.