because it seems very arbitrary to me, people will appreciate some references and think others are cheap. and very rarely do the references matter. like for example in Ant-Man some people were like "derp he said tales to astonish and tales to astonish is the name of the ant-man comic wow so clever" but like did it really matter? I mean the guy is talking about propaganda so the term "tales to astonish" is appropriate right. Like if he changed the line though it wouldn't make a difference so what's the big deal?