I have always believed that Flickr in recent past didn't quite capture the imagination of photographers and many still prefer to use mobile apps to share. Flickr has its own community but few use it regularly. I don't use it regularly either and for good reason. But with the recent change by Yahoo, with 1TB free to use. I think that will be a good thing. I rarely think of sharing my photos at full resolution, It just don't make sense. Upload times are problematic and downloads over a slow line will take forever if you have a handful of 24 megapixel photos.
Let's see how this works out as the features are fresh, you'd know in six months if this will inspire people to host with flickr once again.