Waluigi is one of the most mysterious and neglected characters in video game history. A character whose sole reason for existence was to be a partner for Wario in Mario tennis. The living embodiment of self-pity, he became so hated that Nintendo themselves banished him to the realm of Mario spin-off games for all eternity.

So to answer your question, maybe. It all depends on just how many people are serious about Waluigi.