This market has actually become unhealthy since 2017. The scam icos are rampant, various new exchanges are constantly being established, and pyramid schemes and Ponzi schemes are emerging. This situation is more obvious in 2018. These reasons have caused the current bear market.
Yes, you are right. The absolutely unexpected behavior of the market throughout 2017 came to decompose and deconfigure the organic and gradual growth that bitcoin had had during its previous eight years, and the consequences are still being paid to these days, when people went from excessive optimism to unjustified distrust. In addition, it seems that the control of information related to crypto space went from the hands of developers to speculators, so the massive and disorderly arrival of capital to the market in 2017 has only damaged the proper development of this ecosystem.