@Joannie - There is always a reason why some people behave in an unacceptable way, or say nasty things on an anonymous forum etc. - I believe we are all born 'innocent' and it is our environment which makes or breaks us. Some humans grow up well despite a difficult environment, some people grow towards kindness despite a difficult life.
Hitler? of course not, someone should have put him out of his misery a lot earlier . . . but there is a background of cruelty to him, his siblings and his mother by his father, (I read that in a book by an English Historian) - doesn't excuse what he caused, of course, but I bet you anything, you check on the background of any of the cruel men of history and you'll never find a happy childhood.
As for our poster: I believe anonymous fora are a legitimate and in reality harmless outlet for some frustrated folk, who are probably quite mild and meek, maybe put-upon by a harridan of a wife or partner - so: just ignore!
Have a great day, dear JoJo!
Tau