Plenty of folks on the right are noting the retirement of Cindy Sheehan from her professional Bush-whacking chores. Many of the comments, especially those using prostitution metaphors, are unfair. Yes, she was (and is) a media hound, but there are plenty of other folks who try to get press; many, if not most, politicos are actively trying to maximize their free media.
She was against the war before it was cool; she became redundant once folks started joining the bandwagon. With the Democrats taking over Congress and public support for Bush's Iraq policy going in the toilet, the media had more interesting things to cover (like congressional moves to try and corral Bush) than a media-savvy mom trying to extend her fifteen minutes of fame.
I'll have one non-ideological nit to pick (there are plenty of ideological ones, including gratuitous use of "fascism") with her Kos post; she states that "This is not my 'Checkers' moment." That references a 1952 Nixon speech where he was defending getting and returning overly-generous gifts, but keeping a dog that his girls named Checkers. What Cindy might have been after was his 1962 speech after losing the California governor's race where he said "You won't have Nixon to kick around anymore." She vows to keep up the progressive fight.
One of the interesting lines is this one-"Casey [her son] died for a country which cares more about who will be the next American Idol than how many people will be killed in the next few months while Democrats and Republicans play politics with human lives." Given that half the country doesn't bother to vote, it would be fairly safe to say that more folks were talking about Sanjaya at the water cooler than the latest parliamentary maneuvers on Capital Hill.
You can make that statement that more folks care about American Idol than care about [insert any political topic]. One of the good things about our political system is that half the population can ignore politics and assume that things will muddle through in a generally positive direction. It's easier to have an opinion on who is a better singer than to wade through the fine points of immigration policy; many of those non-voters probably think you can avoid H1B by using a condom.
Elites of both sides of the aisle bemoan the lack of interest in current events of the huddled masses. It's actually a virtue; it means that things are going smoothly enough that folks can afford to pay attention to other things, even low-importance things like TV music contests.
That frosts the cookies of activists, who rail against their foes on the other side of the aisle, but that's the reality of the modern world, of large masses of people who are ambivalent about Dick Cheney and Cindy Sheehan, if they even know who either of them are.