Why authors of these blog posts assume that everyone know what the context is? Even if one assume the term is related to computing and technology, there's 4 different things named SPA. Is it that hard to expand the term in the title or in the beginning of the blog to help people quickly decide if they are interested in it or not?

Sorry for the rant, but this is not the first time the article forced me to read it before I could decide if I'm interested in it.