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.
exactly my point.
they can not identify you by
only using "dust attack" technique that you explained here. for example someone can have 2 addresses both not-linked to his identity. first one that is empty receives dust then he links it to the second one, there still is no way of linking these two to his identity. similarly the another person may have 2 addresses both linked to his identity, the empty one receives dust and he links it to the other one. no additional privacy was lost here.