A short clip from a talk by Andreas Antonopoulos about privacy. In the first part, he describes very well how voluntarily privacy isn't good at all. I recommend watching this short clip.
Bitcoin Q&A: Backwards privacy and the importance of earning (5:24)

In case anyone is wondering what is Backwards privacy, here is a good explanation: https://www.quora.com/What-is-exactly-backward-secrecy-property-in-cryptography-attribute-based-encryption

I suggest you use [XMR] Monero Speculation thread for post like this. There are more people interested in price of Monero.