I got the distinct pleasure of describing my big physics idea to Murray Gell-Mann, who is both a Nobel laureate and expert in (one half) of the specific topic I was interested in. He told me very bluntly he thought it was hopeless, and I consider it a sign of respect that he didn't feel the need to sugarcoat it.
There's politeness--with which I've only seen Gell-Mann flirt--but then there's the sticky-sweet bullshit the OP was parodying.
(He's wrong though, and I'm still working on it :)