The first ones are from photobucket which was what I mentioned because photobucket is now charging a fee in range of $400 for anyone to post their photos. Most users of photobucket have moved to flickr (note the name spelling please).
As for the flickr shots, these are 9 years old and member could simple have had a limited account and removed them from flickr himself to make more room or simply just removed them from flickr for any of number of reasons.
I have photos on flickr dating back to 2009 and they are still visible on this forum unless I removed them from flickr myself. Which I have done when I first started because at first time using flickr I had a limited account and when I first started using flickr, their amount of space wasn't unlimited like it is now.