what's wrong with adn?
Nothing.
Blame Poloniex, and to a lesser degree, Mintpal. There was some support in anticipation of the Mintpal add.... but when Polo became absolute garbage for trading anything except XMR, and Mintpal lost its luster compared to Bittrex, Aiden suffered.
A Mintpal add would still be a big deal, but we're still a week or two away from that. Some of the guys are trying to get on Bittrex too, which is now the bigger exchange.
But being on polo now is pretty much a waste. The combined volume of
every coin except XMR on Poloniex is only about 66 btc.
So... basically, Polo stopped being a big Altcoin exchange, so now Aiden is no longer on a big exchange... and the exchange everyone was trying to get it on, a huge portion of the altcoin community abandoned en-masse, and there's some suspicion that the current Mintpal volume is faked because of the new acquisition.
None of this has a damn thing to do with anything Aiden did. So buy up and hold. Defaced is one of the most dedicated and committed devs in the altcoin world right now.