I would blame the French. Frenchmen speaking English badly often say Borat like phrases, for example "its great, no?". It happens when you learn vocabulary without grammar rules.
I would literally argue that it's ironic that most English speakers have a bad command of the language. Of course you're experience may be different. The reality is that grammar is often, especially in spoken language, is butchered. It's affect is that many people could care less.
:P