"Cascade of Attention Deficit Teens" - it's a phrase coined by jwz (of Mozilla fame) to refer to how some some projects (he specifically targeted GNOME) tend to throw out mature-but-imperfect code and rewrite it from one version to the next rather than addressing bugs and problems in the existing software.
I think it's a little unfair of him to single out young developers, but I have seen the 1.x -> 2.x rewrite before too so he's not wrong overall. If you want to read the original article search for "The CADT Model" - I would link to the article but JWZ shows requests with referer "news.ycombinator.com" an image that you may not like if you're at work :)
edit: oh I just clicked the link someone posted (in a [Dead] comment), it seems he has removed the functionality I described
I think it's a little unfair of him to single out young developers, but I have seen the 1.x -> 2.x rewrite before too so he's not wrong overall. If you want to read the original article search for "The CADT Model" - I would link to the article but JWZ shows requests with referer "news.ycombinator.com" an image that you may not like if you're at work :)
edit: oh I just clicked the link someone posted (in a [Dead] comment), it seems he has removed the functionality I described