It has. Yes, all of the relevant family connections are listed (my parents, my 7 siblings, and myself form a complete graph[0].) It's not just my mother, either -- a few wedding photos of a family member, posted today, didn't show up in my main news feed (which I always set to chronological rather than top stories, and which I check several times per day.) The photos should have been at the "n hours ago" point in the list, but I only discovered them because I was searching for examples for this thread. (I thought the missing post from my mom was a better example, though.)
FaceBook's algorithm seems to work for some people, particularly those with particular usage patterns. But its failure modes can be quite obnoxious. They provide some tools that allow some degree of fine-tuning, but even having manually set the "show me everything" options, certain content falls through the cracks.
It has. Yes, all of the relevant family connections are listed (my parents, my 7 siblings, and myself form a complete graph[0].) It's not just my mother, either -- a few wedding photos of a family member, posted today, didn't show up in my main news feed (which I always set to chronological rather than top stories, and which I check several times per day.) The photos should have been at the "n hours ago" point in the list, but I only discovered them because I was searching for examples for this thread. (I thought the missing post from my mom was a better example, though.)
FaceBook's algorithm seems to work for some people, particularly those with particular usage patterns. But its failure modes can be quite obnoxious. They provide some tools that allow some degree of fine-tuning, but even having manually set the "show me everything" options, certain content falls through the cracks.
[0] http://en.wikipedia.org/wiki/Complete_graph