I want to write an article about this and I've been asking around.
So far, I've found:
* Fraud and scammers
* Government taking over
* Scalability and governance
How about you guys?
* Not nearly enough competent "dev teams" to support +1450 ( and growing ) coin networks
* Projects that have no self funding mechanism nor development "road map"
* Poor security features on exchanges and especially in "wallets"
WasTriffin