Yes! Bitcoin is really anonymous. There are some says that Bitcoin should spread and become well-known. But there are also some who wants to hide bitcoins identity since there are dangers when it became popular.
Well because of its factor that its anonymous so the identity of the beholder is just state by its transaction history or the address but it cant see who , and sometimes it can use to some illegal transaction mostly uses this is the hackers and terrorist.
in any case, some Bitcoin wallets have personal authorization. And this is a link to a certain person. And if transactions are to be carried out at this address, then it is very easy to link Bitcoin and the person.