Actually it's much worse than this, because while your identifying information is most likely not interesting, aggregate network flows are. For example, when a node tends to aggregate transactions, we can infer that they are a 'merchant'. If their public key doesn't correspond to a known business, we can infer that they are engaged in unregulated commerce and investigate. Nevermind the very real possibility of having an out-exchange refuse a transaction because several transactions back, the value was stolen or otherwise involved in nefarious deals ("chargeback 2.0").

If a payment technology can't be used to incentivize TOR nodes, it is not anonymous. Throwing around the word 'anonymity' when one means 'psuedonymity' does a disservice to everyone interested in actual anonymous systems.