:I don't think it's necessary to change the word "vandalism".  Wikipedia vandalism is named after real-world vandalism, not vice-versa.  WP:ASR doesn't specifically mention this sort of situation, but I think that it covers it in spirit.  Same for WP:NOT, though to a lesser degree (specifically, the part about Wikipedia being an encyclopedia first, and a community in service to that goal).  Pages about intra-wikipedia matters, like vandalism of articles, are in a different namespace (recognizable by the Wikipedia: or WP: before the page name), so there's no need to change articles in the main namespace to prevent confusion.