The magic of bitcoin public addresses allow us to track our bitcoin finances without effecting the security of the coins. Improved privacy is also another key reason people are attracted towards the cryptocurrency. Blockexplorers and other web services that allow user to track bitcoin balances/transactions are hugely popular. One privacy concerned user exclaimed

If I enter my bitcoin addresses on a wallet watcher, it will know my bitcoin worth and identity, I better run a node and monitor my addresses there.

Not at all necessary ! Just the fact that you are monitoring a bunch of addresses doesn’t mean that they belong to you or even belong to a same person. While running a bitcoin node or any SPV wallet would provide a higher levels of privacy, you could remain private even while using a convenient web service