People are free to believe whatever they want about any issue they choose, including the age of the earth. That's how an opinion works. If you really don't understand that, perhaps that's why you're having trouble when you try to argue with me (or anyone, for that matter).
Sure, that conversation may have been better served in another thread. That doesn't make someone a troll for having it there instead.
If people are indifferent to my opinions, I would suggest many of them probably disagree with me but realize I will defend my opinions and they don't want to argue so they leave it alone. This is often a wise move if you'd like to avoid becoming frustrated in a debate that is unwinnable.