I honestly don't believe anyone actually uses any of these alt coins. Covals main focus is instead of hype to get real usage and admittedly that usage is zero so far. So seriously is anyone actually using any of these platforms. I highly doubt it which means the whole thing is bullshit speculation and likely to crash.
They are not meant to solve any problems but be used as a source of generating money.Apart from ETH/Monero/Doge nothing is relevant in the commercial stream for a long time.Take gambling sites for example,they only accept a few famous alts.