Cannot the attacker merely hint the non-dust UTXOs of that deal with?
After all, however they’ll try this with out sending mud to it as effectively.
The purpose of a dusting assault is ensuring the pockets now has many UTXOs assigned to the identical deal with, to extend the probabilities that one among them will get spent concurrently with different addresses that pockets has. The attacker then will get to watch what these different addresses are and infer that they are a part of the identical pockets because the dusted deal with.
They will make this infererence at all times, even with out dusting it. However dusting it causes the pockets to have extra UTXOs to select from, making it reveal extra if these mud UTXOs get spent in lots of distinct transactions. And on this case, not spending the mud does certainly thwart the assault: the attacker doesn’t get to see greater than they’d with out dusting.
