[BariGrootrego]

even if one believes in kamma and rebirth, unless one is enlightened, one cannot necessary know one's past deeds and there is no reason to speculate on it.

Please read the Susima sutta. An enlightenment person does not necessarily gain knowledge about one's past deeds.

But my question for you two, or others is, then is what is your personal goal for practicing Buddhism? Let us say that a person is enlightened, and then he dies and then he is no more. Then what? Is there a point for that person to reach enlightenment, whatever your definition of enlightenment is?

Imo there is a fundamental flaw in your justification. You are comparing apples to oranges. When a person dies, he is dead. He is not living anymore to feel or perceive anything. What good is in that state? Enlightenment is for the living. Enlightenment is ending of all kinds of mental suffering and living in complete peace and equanimity. Now that sounds like an appealing goal to achieve. I wouldn't trade enlightenment for death.