THE PHILOSOPHICAL REASONING UNDERLYING TOM WOLFE’S USE OF EXCLAMATION POINTS. Here is Tom Wolfe’s explanation from the brainyquote website for why he uses exclamation points.
“People complain about my exclamation points, but I honestly think that’s the way people think. I don’t think people think in essays; it’s one exclamation point to another.”
There are a lot of implications for linguistics, literature, and philosophy there.