Or, just maybe, he wasn't an egomaniac looking for praise.
That is substantially the consensus of those who knew him, including his biographer. He didn't let fame go to his head. Ironically that sensible approach is what the conspiracy theorists have latched onto as somehow suspicious.
Contrary to Romulus' insinuation this is not a novel or especially convincing claim. Fundamentally it's just, "I think Armstrong should have done ___ but he did ___ instead; therefore hoax!" That he was
treated as a superstar by some seems to create the expectation that he should behave as one, or as how some people think superstars should behave.
Setting up the investigator's expectations as a standard by which data is to be judged is expressly non-scientific. The way reproducibility
really works in the scientific method is that any sort of measurement or judgment or reckoning that's part of a scientific experiment has to be the result of an objective process, not the opinion of someone. If data can vary based on who conducts the investigation, it is not reproducible -- that same person would have to be there to render the same judgment in all reproductions. Hence proposing to judge the propriety of Neil Armstrong's behavior based on what the investigator personally thinks should have been done is a patent violation of scientific methodology. Romulus promised us he would adhere to the scientific method, but he's messed up already.
And as if that weren't bad enough, attributing Armstrong's behavior -- subjectively judged as "odd" -- to remorse over allegedly participating in a lie is an absurd begging of the question.
Maybe, just maybe, he wanted an orderly classroom environment that benefited his students, without the distraction of his fame.
The story I heard, probably apocryphal, is that he allowed the first class period of each semester to be a discussion of his space missions, and thereafter the subject was forbidden. Reasonable enough, in my opinion.
[W]hy Jay in particular?
He already answered that, sort of. He considers me the kingpin in a cadre of debunkers. So apparently he thinks that if he can conspicuously confound me, no one else will matter. I guess it's the same sort of obsession that AwE130 exhibits. And yeah, it's inappropriate.