Because before, I knew bitcoin as a currency that will provide me the absolute anonymity, wherein, no one could track my transactions, and I've heard some good people tell its characteristic as anonymous peer to peer currency. - as time passes by, I realized that with the wallet that I am currently using, it leaves my identity with it, through posting it online on platforms that aren't private.
The wallet that you use can indeed be traced who the owner is, with a note if you've ever posted it on your social media or your Bitcointalk account.
Actually you can make a personal wallet that is not associated with any account and not publish it.
One disadvantage of bitcoin will be replaced with other advantages. Bitcoin is transparent and cannot be manipulated or deleted from its transaction traces.