Laughing over suicide is not nice. LGBT or not. Though more context is needed because dark humor is the thing. Maybe he is just old jerk. Does it affects my DQXI experience? No. Most popular kids book is written by pedophile. Does it means I never read Alice in Wonderland? Will I burn the book in disgust? No. Why? Because I am grown up man who knows what is good and what is bad by myself. And can separate artist from his creation.