$50/year is for the ad-free. They are talking about the two terabyte plan. The (understandable from the perspective of the consumer) cognitive dissonance is, 999 Megabytes is free, but 1001 Megabytes is $500/year. How can two things, so close to each other, be priced so differently?
It's a very, very small number of people (though they certainly exist) that have photo libraries of > 1 Terabyte. And, and an almost insignificant number of people who have 1 Terabyte of curated pictures. (I.E. Eliminating Dupes, Poor Composition, Focus/exposure issues, etc...)
Flickr as backup doesn't make sense - backblaze, at $50/year, makes a lot more sense. Perhaps this is Flickr's way of encouraging people to start using them as a curated upload site, and not as a backup of their entire photo library.
It's a very, very small number of people (though they certainly exist) that have photo libraries of > 1 Terabyte. And, and an almost insignificant number of people who have 1 Terabyte of curated pictures. (I.E. Eliminating Dupes, Poor Composition, Focus/exposure issues, etc...)
Flickr as backup doesn't make sense - backblaze, at $50/year, makes a lot more sense. Perhaps this is Flickr's way of encouraging people to start using them as a curated upload site, and not as a backup of their entire photo library.