Like I said on Quora, we use the location field that you put into the album when you uploaded it. The album location isn't displayed in the caption for individual photos and isn't displayed that prominently on the album page, so you're probably just not seeing that you set it when it was uploaded in 2009.
It didn't work like that. It was a plain blank text field among a couple other blank text fields. No search was brought up upon data entry. Very innocuous; Perhaps that why you don't remember it.
Believe me, I would have remembered doing it. I wouldn't have cared about a location tagging message if I had entered the location manually. Not to mention I couldn't even remember the names of some of the cities where the photos were taken until Facebook suggested them to me.
Disclosure: I work on location products at Facebook.
I think that real world places are an important part of who you are. Where you're from, where you've lived, and where you've travelled to, for instance, all help tell a story about you as a person.
The way that's represented on Facebook today is the Map on your Timeline. These suggestions help you put more photos on your map so you can share experiences with friends. That trip you took to Disney World 5 years ago may be far down in timeline, but it's going to be easy for friends to find it on your Map.
Because Chrome has a multiprocess rendering architecture, and OS 10.5 doesn't provide a good path for hardware-accelerated rendering across processes. This means Chrome on 10.5 has to render each frame on the GPU, read it back to main memory as an image and then repaint it to the screen elsewhere. The bigger the window, the bigger the image and the longer this readback/copy takes.