The market has realized most of these coins are worth nothing and the promoters have no intention of developing the ecosystems
Like what happened in the dot-com bubble it will probably happen sooner or later in the altcoin ecosystem. I don't know when it will happen but as soon as it does, 95% of all altcoins will be worth $0.
I hope that I'll make the right choises before it happens and hopefully I'll have most of my money in the 5% that will prosper.