In some cases the context is hard to explain because it's complex, or it relates to something about the domain of the use-cases which is very particular to this

In some cases the context is hard to explain because it's complex, or it relates to something about the domain of the use-cases which is very particular to this implementation. If all you need is some small detail, like how to accomplish something with X library, it would be a waste of everyones time to write several paragraphs to explain some context which will be irrelevant to everyone else.