When did "you can find this on your own" because a reason to delete an FPP?
The stated reason for the deletion of this post
linking to an in-depth exploration of the institution of slavery in Mauritania was "...a CNN Special Report isn't really something that people can't find on their own."
Now, I am assuming that there were flags on this post that drew the attention of the mods in the first place. I can imagine that some flaggers viewed the subject matter as falling under the rubric of "outrage filter". And in my searching for the existence of any prior policy on the matter I've discovered there's a vocal anti-CNN contingency amongst us.
Regardless, the reason that the mod chose to explain the deletion was simply that you can find it on your on your own (reading "readily" between the lines). If that's the case, can't we say the same thing about any single-link post from a relatively popular site?
Although I'm a relative newcomer in the grand scheme of things, nevertheless my understanding of Metafilter is that it aims to be the Best of the Web. Not Best of the Obscure, Deep Web. Nor Best of the Web Except Those Sites that Any Responsible Web Denizen Already Has On Their RSS Feed. I could trot out several samples of single-link-to (IMHO thinner)-CNN articles that have stood, so I'm not sure why this one was different.
I found this to be a good piece of long-form journalism and provides good fodder for discussion and reflection--it's not just "look at this shitty thing that f'ed up people in some African backward do." Obviously, I am capable of finding things on my own on the Web. I come to MetaFilter because other people can do that work for me, filtering out the mundane and leaving me with the bits that are interesting, eye-opening, and worth reading/watching/hearing. I thought this article fell into that category.