I have watched the comments, attempted hijacking, slagging, ass kissing, help, anger and all the other emotions from this incident.

For what its worth, here are my comments/input - take what you want, throw away what you don't:

Transparency in public relations earns the communities respect, be transparent, be quick to respond and ensure that you are keeping customers informed.  
-- Trust me, it is the best strategy, happens all the time in my industry and those that choose this path, always are rewarded for their honesty, communications and earn the respect of their customers and the community.

-- replace your maintenance page with an update = This is what happened, here is where we are at, this is what we are doing, this is when customers should expect the return of their coins, you can/can't keep mining with our pools, etc... prob take 15 minutes to write, just ensure what you write you will do.
-- tweet daily to say "we are still here" working on getting ____ and ____ done, on track...
-- update your facebook page
-- listen to the community, communicate, you have a strong customer following, be loyal, they are to you

Coinex is the best exchange/mining combination out there today (imho), improve the security, preform audits, set up a honeypot, cut a reputable security firm into the profit equation to monitor, audit and fix any potential issues.  If you can't get this done in a reasonable time frame, don't let this stop you doing what you said you would do:

When someone says they will do something, do it.  In this example, you say you will return coins, you have in the past, this is what customers are counting on, make it happen.  

For those thread hijackers, your exchange will not get any of my future business.  Opportunism has its place, when people have lost their coins, some of their earnings, it so tasteless for you to do that, you should have deleted your post, negativity is growing towards your exchange.

I could go on...  but won't

Waiting to see what happens next, earn respect, trust and loyalty, or fuk the community and his own reputation...

Happy days!