Okay, can we get back to discussing punctuation now that Victor's banning has been resolved?
Personally, I see it as an act of intention. Abusing punctuation is a choice, just like using all capital letters or awkward combinations of caps and lower case. Really out there slang spelling falls into this category also.
People who have poor spelling or grammar are often trying their best. It's different because they're trying to communicate vs. trying to create what someone here called a "style". They're not making the same choice as someone who misuses punctuation, caps or intentionally awkward spelling.
I'm not in favor of punctuation abuse regardless of which user is doing it. It's in the same category as using all capital letters.