The fact that it came from a vendetta of some sort is reason enough to think that Stewart had a personal reason to slap Jim Cramer in the face, definitely.
Maybe the aftermath will be okay-- as long as he keeps his dignity after the fall... it's hard to say with media games like that. Also, to keep an eye on Stewart-- Imagine what it must feel like to have multiple enemies based on vendetta... it must feel really bloated and nasty after a while.