Bitcoin addresses are not automatically anonymous.
You have to go to effort to make them ... mostly anonymous ... or never use your bitcoins.
Yet another pool falsely claiming anonymity (same as solo.ckpool)
Bitcoin address is not anonymous once it interacts with the blockchain either by sending or receiving, there is nothing you can do about it to make it anonymous, a bitcoin address is by default
pseudonymous given that you generate it yourself (not via an exchange that knows your real identity).
Now back to the question at hand, using a
BTC address vs an email address to mine, reading the above post makes it seem like using an email address provides better pseudonymity which is questionable.
Using a pool that needs only your
BTC address means the only thing you risk revealing is a
BTC address, using a pool that requires an email login, means you are revealing both your email address and
BTC address to the pool itself only (unless the pool's data is somehow breached then both your email address and
BTC address would be public which is even worse), so it all boils down to how pseudonymous your email address can be, if you create a Gmail account which requires your phone number and your mother's last name and then you use that email on a pool, it's a lot worse than using just a bitcoin address despite it being broadcasted every 30 seconds or what so ever.
Now all of that is only relevant up to the point where you get the payout to your address, how you handle those transactions will determine whether that address remains pseudonymous or not, which really leads to the conclusion that there isn't that much of a difference between the two types of a pool if you know how to handle your email address and bitcoin wallet, so to me personally using only an
BTC address is just more convenient and requires less computation/maintenance on the pool's server, it has little to do the anonymity, pseudonymity or privacy of the pool.