cex.io been down for a bit if they got hack n were over the 51 percent margin could the bitcoin be in trouble ?

Been looking around cant find any info on this .... it would be a bit of a pain to download all the chains and mined into the wallets .. Most exchanges say i cant mined directly into it ?? can some one give me some info on this . Thanks .

If not i'll just create a wallet for each of them ... or advise me where to find this info thanks

How does bitpay give you USD do they do a transfer ?  If it works I am thinking in going to the dealer ships that sell cars and convince them to accept bitcoins .

I am sure people will accept more it if they can exchange it quick .

What are your thoughts on how i can make a lil bit out of it . maybe i can be a cars sales men on commision for bitcoins and do the exchange for that company .