It is not possible, Retro. Rebirth deniers cannot simply ignore a thread about rebirth. They are compelled to argue about it. They cannot abide the idea that Buddhists teach something they dislike so much.
Strange... I do not like teachings on Buddha-nature, yet I do not scour internet forums looking for Buddha-nature threads to start debates in. I simply do not read those threads and instead read other threads. You would think someone who does not like teachings on rebirth would see a thread about being reborn into hell and decide that is not a thread for them.
"Compelled" is the only word that comes to mind.