Just arrogance? SLM, you are being too kind.
Add in ignorance, vanity, an egotistical personality, narrow-minded and frightened and you might have barely scratched the surface.
You see, people like FP and tay (see post above) feed off of the negativity in the world. They choose a target and not unlike a rabid dog, tear away at it without thought or understanding in order to foster a sense of worthiness and value in their own miserable little lives.
Having no sense of self esteem, accomplishment nor ever tasting success in their stark lives, they seek to artificially raise themselves by attempting to lower others.
It's sad to observe, but as the record now shows, it morphs from sad to pathetic in being exposed to the never-ending attention seeking by the usual suspects.