My advice to all altcoins investors is not to panic ,these people as popular as they are can't predict the future, last bullrun of 2017 no one saw it coming and the last Almighty altcoins season of January 2018 no one ever think that will happened.
I agree with you ... that the end of 2017 until the beginning of 2018 is an event that has never been predicted by anyone that bitcoin and altcoin can soar high ... and today the altcoin is declining and many people only see bitcoin and ignore altcoin ... but I'm sure if the altcoin will return to the moon ...