One detail I'd add to that first paragraph was the point about the fingerprints and tape lines all revealing the process of making their posters and zines, and thereby encouraging others to make their own. Ability to find an edge to get a grip on that shows how even just one part of something was done creates an opportunity and encouragement to dig deeper. That theme—go ahead and get under the hood and see if you can understand how this works and put it back together or make your own—was also strongly present in Josh Reich's talk.
[Looks like I did nothing on my personal Facebook account between mid-May 2010 and this post, but it's always hard to tell if Facebook is actually showing you all the posts it's got—even when you're looking back in your own timeline. Which is total bullshit of them, and thus a good argument for it being true that I took years off.]