I would actually love for something like this.
I thought about making my own version, one where I could upload photos and videos, so that I could cross-reference.
"Look here's aunty Mel with uncle Roy. This was back in 1992, so it must have been in Brisbane" etc.
I have a complicated family history; immigration, DoCS, siblings put up for adoption, step parents with their own family tree, etc.
I have managed to retain some original photographs and letters, and would love to store them somewhere and begin to cross-reference them, so that I could see all the photos relating to one person, etc.
I've almost thought about getting some open source Facebook clone and using that.
(Edit: by coincidence, I just got a renewal reminder for the domain I bought for this project, maybe I'll kick the can for another year)