Actually every conditioned soul is a Mayavadi, otherwise the soul wouldn't
be conditioned. When Srila Prabhupada first began lecturing in New York in
1966, he would often attack the Mayavadi impersonalists in his talks, and
not understanding this I joked with friend: "Mayavadi? When was the last
time you saw a Mayavadi?'' None of us could understand who Srila Prabhupada
was talking about; we all thought that the Mayavadis were a little group of
philosophers in India against whom Srila Prabhupada was waging theologic
battle. But actually we were all Mayavadis. Now we are daily praying:

namas te sarasvate deve gaura-vani-pracarine
nirvisesa-sunyavadi-pascatya-desa-tarine.

"Our respectful obeisances are unto you, O spiritual master, servant of
Sarasvati Gosvami. You are kindly preaching the message of Lord Caitanyadeva
and delivering the Western countries, which are filled with impersonalism
and voidism."

>From a 1970 Back to Godhead article by Hayagriva dasa Adhikari