You are trading on an open exchange, and you have major inaccuracies in the first post of this thread. You really need to update it:

 - It states there are max 4 million coins, where there are actually max 8 million coins. (Your sig is also wrong)
 - It states there is a 200 block premine, but doesnt mention the fact that two of those blocks are for a million each.

You've stated that you intend to destroy some of the premine, but you haven't said how much you will destroy, or when, or how. You should make a decision how much you will destroy, and do it as soon as possible. They should be destroyed properly, i.e. verifiable by looking in the blockchain (no, a youtube of you dragging your wallet to the trashcan is not enough).

There is no need to wait until the coins are spent before destroying the rest. This coin is currently 99% premined (95% premined at end of year 1; 25% premined in total), and until the coins are actually destroyed you cannot claim otherwise (no matter what your intentions).

Ideally you would destroy all of the discovered premine, and track down the missing goat the dev stole and destroy that too. Anything else adds fuel to the suspicions that you knew about the premine, and/or were responsible.

You should also pay the guy who pointed out the premine the 0.5btc that you promised him. I don't approve of this methods, but you did promise him 0.5btc and you are now going back on those words. "Going back on words" is not a good characteristic in a coin dev.