What I really miss is the acceptance by politics. Politicians should really start to look into the whole crypto world.
Politician are investing in cryptocurrency but some of them don't want to fully and openly acknowledge because it might influence a lot of people and the local bank might also be affected.
To OP, what I really missed about cryptocurrency is the unpredictable price of all cryptocurrency and it unstable price. If this issue can be fixed then probably we investors can know when to invest and when not to. But alas, I guess this can never happen.