I am not sure that I would actually use an 'Ignore' feature...call it ghoulish, but I actually 'enjoy' reading some of those really nasty posts...not 'enjoy' in the sense of having a good time, but rather 'enjoy', in the sense that I like gathering useful information....those types of posts gives me a lot of information about the workings of certains posters minds...I guess, for me, I am one of those who gawks at accidents, and also 'enjoys' reading foul posts...
Guilty as charged, myself.
I find the psychology of the CRIDers fascinating.