Good theories. But they went too far: he was neglected by everyone for 12 years. And the grownups knew Naruto had the kyubbi inside him, they were not aloud to tell their children, but they knew.I think there are tthree reasons.
1- They didn't want him to grow up spoiled as the son of the hero of the village
2- For protection. The 4th wasen't liked by everyone ( other villages mostly) so people knowing he is related to the 4th could put him in danger.
3- Being the container of the 9-tailed fox and being the son of a hero would put pressure on him to do great things because others would expect it. By keeping his father' name secret they tried to give him a normal life. Even though it kinda backfired.
I think it had something to do with Danzou or the elders having a personal issue with the 4th. They did not want to reckon anything coming from the 4th, any legacy. Also, because jinjurikis names are top secret in each village, and they must have thought Naruto would go mad about saying his dad's name if he knew.
However, I think Naruto has realized (why me? why did the 4th chose me?) but would never speak about it, as he senses it is a taboo.