I bet anonymity is a must for many users. We definitely need a poll. What happens if i send all my money to one of my unused addresses? I guess that coins from all other addresses are gathered in one and no one is able to tell if I sent them to myself. Right? As the OP (I think) said, I will be still in the “suspect” list but nevetheless it offers some deniability.
BTW when you send money to yourself the transaction log doesn’t even list which the receiving account is… 🙄