I am sure Max wouldn't have tanked, had it been on any exchange other than MCXNow. Having a trollbox on the exchange is death for something like Maxcoin. When the haters outweigh those who like the coin, you have no chance - after all, as Metallica once said 'an empty can rattles the most'.
Oh, I pulled my 800 Max out of MCXNow about 4 days ago, back into my wallet - it's not going to go back to the price I am willing to sell for, for a while, so I may as well keep them safely offline.