Great post, very interesting read.
I saw another recently re XRP, similar story.

At the end of the day crypto, like anything else is worth what someone is willing to pay.
Exceptions may be SBD/STEEM &/or TNT etc where there is 'something' of value behind the coins. ie a service or platform, which give the 'currency' value.
ATM the 'bankers' are hitting 'digital-money' they don't own ie BTC etc very hard eg media & regs etc. so coins with a value behind them are the safer investment IMHO