Good question, that's almost 50% of the current supply. Guessing it's Polo's wallet maybe, no txn for quite some time from that wallet so guessing it's an exchange most likely...maybe btc38

So guessing this coin is dead, dev is active but doesn't seem to be working on anything. Pretty old coin and interesting to still be on Polo but guessing that wont be for long as this seems to be fading away.