Your patronizing aside, I never said that the SE statement was not meaningful, I just said that it wasn't unique in its impact on adcoms. Adcoms, more than anything, are going to be swayed by well-written, well-thought out statements regardless of the subject.
Maybe at some schools financial aid decisions are made by the adcoms (and thus writing an SE statement might influence your aid decision), but I'm unaware of any schools that do it this way. If you know of any, let me know, I'm curious.
Im sure they go through many Diversity Statements every year saying the same thing, especially coming from African-Americans because many of us grew up without a silver spoon and are proud to have made it this far. While I do agree with Smujd in a way, i can see your stance also. I gets redundant after awhile