@Rebelofnj,
Going by what I had seen, heard and read online, the way the media and the press was going on about Waluigi I was under the impression that the character was very popular.
I recall there were dozens of newspaper and magazine articles written about Roger Rabbit, around the time
Who Framed Roger Rabbit was in theaters, and the media talked about and celebrated the character for a while, and a number of references were made to Roger Rabbit in pop culture around that time, that's why I made the comparison between the two characters.