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This is nice.
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Please, learn to quote responsibly.
It's not necessary to include the whole original text if you are replying to the thread without a specific quote reference.
I might suggest you two threads to help you familiarize with such topics:
The attacker sends satoshi to a used but empty address. The receiver then aggregates those satoshi to a new address by making a payment. At that point the old address and the new one are "linked" and the attacker can, with methods of chain analysis, try to trace your identity, having discovered, however, that you also have control of the old address.
this bold part is misleading because nobody can "trace your identity" this way, specially not by using blockchain analysis alone. all they can do is linking the different addresses if they weren't linked before only when the user consolidates the inputs in one transaction. and an address is not revealing the identity of the user on its own.
Bitcoin it is not an anonymous protocol, but a pseudonymous. If an exchange gives you a few satoshi and you consolidate those with your bitcoin stash, they are perfectly able to link your KYC'd addresses to the pseudonymous one. Same thing if they send dust to an empty address and if you send to a KYC'd address (or an address "touched" with a KYC'd one). This is what the sentence ion bold meant.
Please remember that this is not fantasy: Coinbase
buying Neutrino (chain analysis company) AND giving out satoshis (
https://www.coinbase.com/earn) is the reality.