I think this is a general thing these days. Especially on the internet, people (mainly young people) just start off in medias res and assume that everyone reading knows the background of the story just because it is clear to themselves.
Whilst I sometimes huff and puff if someone is relating a story or a situation and they "start with Adam and Eve" (as the Germans say) it is far preferable to do that than having to ask questions, or getting comments starting with "it depends..." and/or getting told off for jumping to the wrong conclusions.
I try and summarise the basic situation succinctly before explaining the problem. Basic essay writing, really.
Old sayings with a theme 2 ( continuing *nanna8*'s thread)
Last weekend, in Rutland, the first statue in Britain of the late Elizabeth II was unveiled.