Anonymous cryptocurrencies.

Last days there is a rapid growth of the cryptocurrencies positioning itself as anonymous. Starting from the already well-known Dashkoin and Monero, and ending with little-known coins like Verge, DeepOnion, Spectrecoin.

Why is this happening? Anonymity of transactions, hidden balances, inability to track payments. Why do these things become more popular with the growth of bitcoin?

The Swedish tech guru Emil Oldenburg told: “An investment in bitcoin right now I would say is the most risky investment you can make. It is an extremely high risk. I’ve actually sold all my bitcoins recently and switched to bitcoin cash.”

So thats mean that bitcoin will be replaced by some other coin. BitcoinCash? Or maybe it's will be some new anonymous coin? Which of them?