Because Nas Daily is an ex-Muslim who abandoned Islam (and all religions, for that matter, see Nas Daily videos below), Azman Samsudin is concerned that he will be a bad influence on Singaporean Muslims who might also be tempted to leave Islam.
https://sg.yahoo.com/style/10-questions-guy-wants-ban-064944029.html
Nas Daily video : "Why I left Islam and all religions to create my own religion : Be Good & Do Good!"
https://www.facebook.com/watch/?v=912129025605917
Nas Daily video : "The Problem With Religion.... all religions!"
https://www.facebook.com/watch/?v=1070515216433963
Nas Daily video : "People call me a bad Muslim, here's what I think..."
https://www.facebook.com/watch/?v=1015365798615572