alt Hacker NewsBut you (theoretically) cannot know who mined the coin, or who is actually the holder of the coin, thus the anonymity. Though currently this is getting restricted as governments require more ID verification from businesses dealing with crypto, which links up your coin to a real person.
The correct term here is pseudonimity - you know the immutable, stable wallet id of who mined the coin, which is a pseudonym for a real person. Anonymous systems are ones in which it's impossible to associate an identity with the work item.
For example, if I send cash through the post office, and I don't sign the envelope, that is a form of anonymous payment - it's impossible to tell who sent the payment (assuming there is no footage of the post box where I deposited the envelope, and I left no DNA on it, etc). If you receive a second payment, it's impossible to tell whether it came from the same person or someone else.