Cause it seems to me like it's an awfully hard way to type???????
It's quite endearing and difficult to type, actually. I do it, only with titles/headlines to bulletins/blogs on Myspace/Facebook. Other than that...it's kinda like 'text/net' speak. Some say it makes it easier.
But, really...
'whn i strt 2 tlk lyke ths, i bgn 2 gt cfsed'.
(When I start to talk like this, I begin to get confused.)
It takes a lot more thought.