My wallet is now a single utxo. If you were a nerfarious individual who wanted to $10 wrench attack, you would scour the blockchain looking for large utxos. You are going to watch how the utxos are spend and see if you are spending from UTXO once a week at a place its possible to hang around there and wait for the potential spender.

However if you are spending full wallets its harder to track as theres no way to tell if you are one or many individuals.