If Ms. Garafalo did change her party affiliation, then I'd gather that she's RINO and doing it to protest actions of the Rat party (but one of the reference articles in this thread has her identifying herself as being a fan of Bill Clinton even now (post 9/11) so I'd advise a hefty dose of salt).
Janeane Garafalo moved to Houston during her standup career to be a part of the "Texas Outlaw Comics" (the comedy club is a dry cleaners today. The comedians from that staff included Sam Kineson and Bill Hicks.
I'd place her among other 30-something post-modern cynics. She's too much of an avowed lib and feminist to be switching to conservatism. She may resent the Rat party and want to stick it to them on principle (at the same time, having the opportunity to vote in Republican primaries and dilute the conservative voting block) I think that she'd still be more likely to vote for the Green, Libertarian, or even Socialist candidate over the Republican candidate.
Perhaps at least some of the bloggers' tales of becoming Republican are true. As for me I am skeptical of this claim and find it fishy coming days after Barbra(sic) Streisand got shown up for falling for an internet hoax.
That actually would make sense. As I've said, in any event, if it isn't her, it's still a well written piece.