I have never heard of this expression, 'this follows from~.' Is it grammatically correct? I can't say I rely on the article in Wikipedia.
SMS language is similar to that used by those sending telegraphs that charged by the word. It seeks to use the fewest number of letters to produce ultra-concise words and sentiments in dealing with space, time and cost constraints of text messaging. This follows from how early SMS permitted only 160 characters and some carriers charge messages by the number of characters sent.
It also shares some of these characteristics with Internet slang and Telex speak following from how its evolution is rather symbiotic to the evolution of use of shorthand in Internet chat rooms.