[note: spouse of pbase user borrowing account to complain]
The lack of a working rss feed for most recent individual photos is really annoying. Wife keeps saying "have you looked at the photos I posted today" and husband replies "I would if pbase wasn't a PoS." My wild guess is that the developers don't actually use the rss features so don't realize just how big of a deal it is to have this one broken. My wife really likes pbase, but I've been encouraging her to also post her photos to a second service. This way she can keep using pbase but her non-pbase friends who want to know about her recent photos can do so easily (and "most recent gallery" doesn't count).