Dark forces in this world are trying to make us forget the past, in order for them to control us with tactics which they used on us before. But the Internet community exchanges information so much faster nowadays, that the forgetting no longer works.
And of course there is the memory of the Internet itself: once something has been shared there, it soon spreads to other servers, because the copy paste mechanism makes it easy to duplicate things in thousands of places. So if you wish to remove it afterwards, good luck!