So you have no evidence, then?
That will be why you are resorting to insults: ‘snob’, ‘arrogant’, and so on.
Aka please don't point out that some people are arrogant and snobby.
Incidentally, in response to your questions upthread, do you agree that it would be reasonable to expect an English teacher to have heard of phonetics, Anton Chekhov, old English, Middle English, rhetoric and Lewis Carroll? You’ve gone silent on that one
Haven't gone silent at all. As I said already, I think English teachers should be specialists in their own area and beyond that have appropriate knowledge to teach the curriculum well.
Making a list of authors to tick to say "I know this author exists" seems a bit of a waste of time to me. I await your gasps and claims that education needs saving. 
If your sole expectation is that staff have heard of something, but aren't expected to have any knowledge then it seems a little pointless to me.
In terms of broadening a child's understanding of literature in lessons, I'd argue it's by far more beneficial for an English teacher to read up on some of the major theological, social, historical and political issues around the era of the texts they are teaching, than be able to superficially reference whatever books/authors some random person says is important.