I don't disagree with you; it's just that those of us with the DSLRs (and the ILCs) are the last holdouts, we're a niche rump of what used to be a mainstream activity. Someone will make a nice life out of creating a service for that niche, but it's not going to be a Yahoo-scale thing.
I would say that's more because Yahoo lacks any real good vision. :)
From what I see (based on this chart -- http://petapixel.com/2015/04/09/this-is-what-the-history-of-...) -- DSLRs and ILCs are "slow but steady" and not crashing too badly. A "niche" for sure. But until smartphones can match the quality of a DSLR in certain situations (low light or zoom for a start) I can see there always being a market for these higher-end amateur / hobbyist type photographers. The category being slaughtered now by smartphones is (obviously) the compact digital.
Flickr's not going to be able to compete at this point with the general social media photography. Why not focus on a market they once had a good handle on and probably isn't going away anytime soon?
