We don't get 80% of the block mined. If you found a block you get 80% of it. We discuss about the premine on the first page of this thread. We use the premine to help sign up merchants, for our proof of sweat, Folding at Home, etc.
30% premine is crazy. Is it in some sort of escrow account from a known and reputable person or is it just "trust" that you wont mass dump it because you just say you wont?
Okay im just gathering whats going on, so you premined 30%, didnt announce the coin until well into mining and you hold the coins and people have to take your word on what you are going to do with them. This checks the box for all possible scams, thanks.