I don't mind messing with fictional bad guys or villains from centuries ago in a far different era but when you mess with nasty folks from the past 100 years, that's just, dumb.
And NAZIS of all people! *BLAUGH*!
Then there's those who crush hard on serial killers & terrorists. Look, I don't care how mind-blowingly gorgeous & baby-faced Tzokhar Tsarnev is....he's a slimy freak who caused the death of over four people (one of them a child) & the maiming of dozens! Even if the guy was a relatively decent, fun-loving boy who was influenced by his goon of a big brother, he did it! In fact, kid brother may have been the one who set the bomb by that 8 year old boy. He saw the child. Did that stop him? Nooooooooooooo!
I understand some gals have a thing for "bad boys", but going ape over bloodthirsty, subhuman psychopaths who committed Nightmare Fuel stuff to many people is crossing the line.