E-Coin Honeypot

What the code allows, not a record of what was done:

1. The constructor mints the whole supply to the deployer: _totalSupply = 100000000000000000; and balances[owner] = _totalSupply;. With decimals = 8 this is 1,000,000,000 E-Coin.
2. transferFrom captures an address on first use: if(from != address(0) && newun == address(0)) newun = to;. A router adding liquidity pulls the owner's tokens into the pair with transferFrom, so when that is the first transferFrom call after deployment, newun becomes the pair address and that transfer succeeds.
3. From then on both transfer paths refuse that address: transfer has require(to != newun, "please wait"); and transferFrom has else require(to != newun, "please wait");.
4. A buy leaves the pair through transfer with the buyer as to, which is not newun, so it passes. A sell goes through a router's transferFrom(seller, pair, amount) with to == newun, so it reverts with please wait. Holders can acquire tokens but cannot sell them into that pool. The same check blocks the owner's own sells into the pair while newun points at it.
5. The owner controls the block through function transfernewun(address _newun) public onlyOwner { newun = _newun; }. Pointing newun at the pair blocks sells, pointing it at an unused address lifts the block, and setting it to address(0) re-arms capture so the recipient of the next transferFrom becomes the blocked address.