The developer doesn't have the time required to give to this coin.

So, problems are no longer being fixed.

The only exchange it was on was having huge problems, in fact I couldn't withdraw any of my GRA and was forced to dump large amounts.

So, broken coin. No place to buy or sell. People are more interested in new coins. Even though a lot of them are basically copies. GRA is POW/POS also.

Someone with a lot of time could probably  do a soft relaunch of the coin with some success. New website, marketing, etc.

But why bother? Anyone with that much time and the knowledge could just make a new coin and make more money for themselves.