I do suffer from an irrational reaction to veiwing text talk however, the brain is remarkable in its power to invent a new language even designing syntax on the fly! and this is mostly done by relatively un-educated people.
I believe also, educated people believe this 'shorcut' language is an insult to their education and therefore it is heavily frowned upon.
On a forum such as this, one would think that the average intellect would be in the 50th percentile or lower therefore wouldn't be such a problem.