I'm still pretty convinced that ETH at least will be around for a long time and is very safe for a cryptocurrency
Ethereum has dropped more than 90% too in the past. I wouldn't call that "safe"

I wonder if this striking difference of opinion reflects personal experience or personalities (risk adverse people flock to the bitcoin forums, risk-tolerant types hang in the alt-coin forums)
Don't forget that everyone has "an agenda": when a banker tells you Bitcoin is worthless, they have an agenda. When they tell you Bitcoin can go up to $400k, they have an agenda.