So why not just use multiple exchanges (with bogus personal information), moving through different coins in smaller transactions, transferring different coin to secondt exchange, convert to another coin, transfer to a third exchange, convert back to accepted currency, and send from there. Just use a few VPN hops or annonymous VPNs on each exchange. Make sure each VPN is only used on the same exchange, so any ip logging only ever sees that ip at that exchange and not at any of the others.
It's complicated, comes with transaction fees, isn't quick, but will work. I'm assuming that if your are worried about the authorities finding out then it's not going to be a small amount of ETH so the small fees really shouldn't matter. May cost you another 10% but should leave as little a paper trail as possible. Why do I feel like i need to go wash my hands now.
Thank you for this, I already tried this and works so fine. I really appreciated your post here in my thread. I'm really thankful for your advice. I just wasted only few ethereum for transactions on the exchange for withdrawing it. But all in all is smooth.