[jack-r-abbit]

Same here. But then again, my wife and I do sometimes tag photos of our children with each others name to draw attention to a picture posted when the other is not there. (I'm not sure I explained that clearly but I see people do this a lot so I assume everyone knows what I'm talking about.) I would imagine that confuses FB's algorithm a bit as well.

[electromagnetic]

Yeah definitely. I get tagged in photos of my son, because he's my son and it's normally one of the grandparents taking the picture when we left him with them for the night. Our family Christmas party must destroy the algorithm when everyone who attended (50+ people normally) get group tagged into every picture.

I do not doubt Facebook is running into problems because humans have a 3-dimensional perspective of time and events. It's the classic "why isn't mommy in any photos with us dad?" because she took them! Dad remembers, he was there. He's not seeing the photographs perspective, he's seeing his own perspective standing with his kids looking at his wife. To him his wife is in that photo even though she is visibly absent.

[JoeAltmaier]

Facebooks algorithm is spooky. Early on my son labeled his cousin as "Dad's brother's daughter". Later that week it had changed magically to 'cousin'.