One of the points I think the grandparent is trying to make is that quite often key ideas are obscured by needing to read vast amounts of literature. For example before I've asked on a forum for some of Kant's key ideas, and all I got in reply was to read several 700 page books, which would be nice, but that isn't what I asked for. I've seen this several times so in certain parts it seems to be a cultural issue for some people. This connects with Orwell's six rules for writing that say when you write you should write to the point.