If you don't want to be doxxed, and all of your Bitcoin financial transactions tracked by shady Russians, you may want to switch to Monero. Note that this is true of _all_ coins with public ledgers, not just Bitcoin.
"[Bitfury], one of bitcoin’s biggest mining farm has been working on blockchain analysis to link addresses with individuals by employing both blockchain data and other sources.
...
97 sources were used in the process, including Twitter, wallet explorers, bitcointalk, presumably Reddit, and so on, leading to identifying “slightly more than 1/6 of the whole Bitcoin blockchain,” according to the authors.
Some 95 million addresses were identified to belong to 14 million individuals or entities covering 45 million transactions out of 240 million total bitcoin transactions since the genesis block to March 2017."
http://www.trustnodes.com/2018/01/09/bitfury-de-anonymises-millions-bitcoin-transactions-addresses
"[Bitfury], one of bitcoin’s biggest mining farm has been working on blockchain analysis to link addresses with individuals by employing both blockchain data and other sources.
...
97 sources were used in the process, including Twitter, wallet explorers, bitcointalk, presumably Reddit, and so on, leading to identifying “slightly more than 1/6 of the whole Bitcoin blockchain,” according to the authors.
Some 95 million addresses were identified to belong to 14 million individuals or entities covering 45 million transactions out of 240 million total bitcoin transactions since the genesis block to March 2017."
http://www.trustnodes.com/2018/01/09/bitfury-de-anonymises-millions-bitcoin-transactions-addresses