Yes, in this case I don't know. Flickr originally was developed by Stuart Butterfeld (among others) and he for one went on to do another amazing job at Slack. So clearly product was awesome there. Personally for me flickr got super slow and crappy for me, and also deleted my dad's 40k photo archive w/no warning and ignored appeal messages from multiple people on BS charges (He'd scanned an old newspaper article mentioning his father which tripped an auto-copyright system). Prior to that it was the clear market leader. But it basically stopped ever being linked to or showing up later on. So I think Yahoo effectively sped up the decline. It's not clear whether something like insta would always have won. Or even whether instagram is actually even economically ideal right now.