0. Build your own ASICs
1. Create untainted coins by mining new blocks.
2. Creata the infrastructure to taint coins.
3. Reduce existing supply of untainted coins by tainting old ones.
4. Sell the untainted coins you mined.
5. There is nobody around to sell bitcoins to cause the taint thing f*** the whole thing
6. All the investment is lost.
7. Get a new job.
Just change the protocol. Recycle old blocks to new, pruning any transaction that has been fully spent along the way, and then getting bitcoind & miners to re-validate, sign and confirm. In the end everything would be tainted.