Only posting the address is not gonna help I guess. You need the singed message from Stake your Bitcoin address here topic. If you have not done it before then I am afraid your road is going to be very hard and the worse case will be losing your account for good. If you are the hacker then you can easily change the contents (including BTC address) of the above URLs. So only posting them actually do not prove that you are the real account owner.
A hacker could indeed edit old posts, but you can archive them for other users, and Admin can see deleted or edited posts. Then again, OP says the account has been locked, so deleting posts isn't a risk.
I hereby confirm I've verified the message, and checked the posts where the address was posted. It all checks out.
Thanks for verifying. I am a moderator at Primedice.com, and can have others vouching for me.
You could ask Stunna to vouch for you here 
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We had giveaways organized here with this account too and so on.
I remember that, good times!I've sent you a PM on PD (weird username dsffdssdf is me), but I guess you're not around.