But, If he/she is transferring them. You can see the transaction. But are no transaction not even one.
Nobody has sent me any XRPs to r9h3FfkBwHXmvZ2RGdbQdgGbBuJvu7r4gM, I have more than 20 Ripple wallets. I am not disclosing them for my privacy, for the exact reason so people can't see what I am spending things on.
Do you want to make your bank account public?