firstly, nothing is censored. you can access all hidden items in the post called "compost"
secondly, the posts which are composted are such becuase they in some way seek to disrupt the functioning of the site.
ready examples of this are posting the same thing 20 times. By doing so the newswire becomes flooded with useless info that hides the other relevant info that would be seen.
Another example is people merely spouting insults, racist slogans, and other posts which seek to turn the site into a flame-war and thereby render any attempt to have real discussion about the issues useless. an example might be "look at all the smelly hippies"
why care? because this tactic is used at EVERY IMC but people who seek to disrupt indymedia's success in mobilizing the public to fight for social justice. The most populated sites get hit the most. Look at any big story and you will find individuals attempting to water down the information presented so that the site becomes contentless and unreliable.
i want to also that the chat forum idea is great so then people could flame all they want there, but we lack the technical ability right now. i will keep it in mind as i attend meetings and stuff though.
keep in mind, indymedia is a tool for organizing, expressing, and exploring. Others know this, they attack it, and want to bring it down at every turn. If you are interested in trying to keep it alive I suggest you attend an editorial meeting 4pm saturdays at 21st & se division