The two issues I am most concerned about are:

1) Greed
Many investors don't seem to have any intention to use the tokens they are investing in, they are just looking to get rich. If a token does have a real world use then we should be striving to use it as such, not simply hodling.

2) The hyperfocus on blockchain technology while ignoring decentralization.
I believe the recent FUD surrounding China has made this more evident than ever. Investors are practically begging China to start regulating the market so that they can get rich. There's been a lot of hype around NEO for a while, and I bought into some of it as well, but can we really trust any token/platform that China has begun digging its hooks into? If we're giving China our personal information and paying the government to use NEO then where is the revolution? As Andreas Antonopoulos likes to remind us, without decentraliztion "blockchain" is just a fancy word for database.