You are quite right, but the particular example you are referring to
appears to be far more of a case of someone who thinks they are being
"clever" and cannot be bothered to actually communicate with us.
"ur" or "u" do not seem to be mistakes that someone to whom English is a
second language would make. Most non-English speakers are far more
careful about language than us :)
Also, I wish I could set my kill file for such abominations as "m8" or
"l8r". I almost always ignore any post that contains these. Language is
rightly an evolving entity but there are limits!
Richard
PS: Apologies to Joel Putter if indeed English _is_ his second language
<g>