I applaud Dalton and Bryan for keeping ADN running for nearly 3 years after it ceased development. In truth, I think most of the users left back in May 2014, but it's still admirable that they kept it running.
If you'll excuse the self-plug, I wrote about the death of ADN back in 2014 and re-reading my post, I think it holds up.
http://mashable.com/2014/05/08/app-net-potential/#P8.bAcE8NO...