Ugh. I'm sure everyone here knew this; but I didn't. Here's the "official" answer:
zyrcster says:
Hi denckwanzer,
We remove a lot of EXIF data from resized photos (when we create the thumb, square, small, medium and large versions). It looks like the photos you uploaded prior to going Pro were uploaded at 1024 on a side - possible you either resized in your photo editing software prior to uploading or you used the Flickr Uploadr to resize the originals. The originals on Flickr retain all of their metadata.
So, since you are now uploading full originals and not resizing them, the Flickr generated sizes will not have the complete metadata info in them.
This is confirmed by using an EXIF viewer (I"m using Graphics Converter on the Mac) to view your latest upload, and, indeed, on the large size, the "EXIF" is not in the file, whereas it is in the original.
For a photo you posted on Jan 9, the largest size is 1024, it's the 'original' on Flickr, so you either resized it prior to uploading or in the Flickr Uploadr, and it's got the intact "EXIF" data.
So basically, everything but the original gets stripped in significant ways, which sucks for posting to forums. If I'm not getting the data I want, I might as well have the nicer GUI and better links of SmugMug.
Undecided....