For the user who post the list that contained the most number of the movies, is he/she a paying subscriber when creating that list?
the list that contained the most number of the movies refers to MAX(list_movie_number); user_has_payment_method = 1 means the user was a paying subscriber when he created the list ; 
user_has_payment_method = 0 means the user was not a paying subscriber when he created the list 


SELECT T1.user_has_payment_method FROM lists_users AS T1 INNER JOIN lists AS T2 ON T1.list_id = T2.list_id WHERE T2.list_movie_number = ( SELECT MAX(list_movie_number) FROM lists )