Since they aren't going to be able to secure the blockchain they would be stupid NOT to cash the heck out as soon as possible.
-MarkM-
And how are you certain that they will not be able to protect the blockchain?
What is the difficulty/hashrate?
Even litecoin had such tiny hashrate that a stupid meme was able to conjure up as much hash or more almost overnight.
Does Auroracoin have more than litecoin or DOGE?
Even litecoin ad DOGE are borderline, each vulnerable even just to the hashing power of the other let alone if you consider all the other hashers out there that are not hashing either of them.
One "PWN the blockchains!" meme could wipe out pretty much any non merged mined scrypt coin it chose and maybe either litecoin or DOGE as well, simply by whipping up as much almost-overnight hash rate as DOGE did. DOGE showed how vulnerable all those coins are, so vulnerable just some stupid meme could conjure enough hashing to PWN them. It is lucky that DOGE was not a "PWN the blockchains" meme but just a "yet another crapcoin" meme. The next meme might not be so gentle.
-MarkM-