Again, I agree to all that you said. I think, someone who learns enough can answer the basic Shailos for his house (doesn’t need to call his Rov 3 O’clock in the morning for something that he knows that the MB permits  ) or even for others.

We need to point out what we’re (me and Elazer) arguing, therefore we must go back to the original argument. What is this argument doing in reincarnation in the first place? It came in when Elazer is explaining why he can argue with the Gra by Gilgul. Since you need to use his own mind, and to his mind the Gra is wrong. Since he has a question which he feels is unanswerable (which I gave 2 possible answers, but he rejected them, since he feels this question must be unanswerable.) So since the Gra cannot answer his questions (since they’re unanswerable,) therefore the Gra is wrong. He applies this to all Torah, if in his mind a Achron is wrong, then he’s wrong, and therefore I can Poskin against him.