Is He Illiterate? Or Just An Imbecile?

I do so enjoy being offered “strategic copyrighting [sic] services” by an on-line marketer/copywriter incapable of stringing together a coherent, cogent or even cognitively convincing sentence.

If I were to use the services proffered to me I would sound not just like the blithering imbecile you have come to know and understand, but also illiterate too.