[The Red Muse]

Well, Tori, maybe they spam coz they do not know any other way to express themselves.

Or then they want to boost their post counts, just like PA said, only because they might feel uncomfortable when being "not as good" as the others with higher post counts. Which is not true.
They spam because they have an attitude problem, low self-confidence or then just an overwhelmingly big amout of plain stupidity.

So there.