if I am using several Monero receiving accounts (like “cash”, “work”, “trading”, “mining”, “donations”) and for each of the account i have secondary account into which i repeatedly sweep my receiving account's balance in order to churn/mix my XMR (e.g. cash -> cash2nd).

What if:

A) I "combine" the XMR again in the second "level" of my XMR accounts (account called common3rd):

cash     -> cash2nd    -> common3rd
work     -> work2nd    -> common3rd
trading  -> trading2nd -> common3rd -> 3rd party (big payment which would combine most/all outputs)

B) I split each churning/mixing transaction into several a small outputs:

cash -> output 1 - cash2nd
     -> output 2 - work2nd
     -> output 3 - trading2nd
and then spend from all these 2nd accounts in one big transaction

Is better (anonymity-wise) A or B and why or you suggest better direction?

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[–] [email protected] 2 points 4 months ago (1 children)

Using a CEX means telling them who you are. No way around that.

If you use subaddresses you don't have to worry about traceability after withdrawal.

[–] [email protected] 1 points 4 months ago* (last edited 4 months ago)

You’ll have to explain me how 15 decoys are enough to make you untraceable, there is still roughly a 1 in 16 chance that a transaction your output is the real spend in a transaction where it is included.

Imagine you are A, and B and C are two different third parties

If B -> A -> C, then all good

But if B -> A -> B, then there is a 1 in 16 chance (in the best scenario for you) that in B's eyes, you were the real spend. Add to that the fact that most people don’t churn and B doesn’t have many customers, and it becomes a lot more likely that you were the real spend (I'd bet my money on it).

CEX or not, you’re still traceable