I suggest you do some research on the history of the English language. The sole purpose of punctuation is to be able to differentiate between sentences. In forums, people tend to post single sentence comments... Omitting a period at the end of the post (and you can clearly see it's the end) should not hinder your comprehension. P.S.- He is not writing, he is typing. Definition: the activity or skill of marking coherent words on [b]paper[/b] and composing text. I have to point out the semantics to make sure you aren't confused or anything.