The average internet user by the way, is statistically not you reading this, doesn't really care too much about APIs and finds the current Reddit client just fine really and as a recent registration, doesn't understand that the developer community basically built the interest in reddit and without third-party moderation tools, clients and a community that deeply cared about their special website, flawed though it was.
All platforms go through this cycle, but Reddit felt special to me and it hurts to find that wasn't true.