I agree Elon's tweets are relevant and should not taken for granted because he could affect the crypto market with how much crypto he and his companies worth.Because he is influencial, his decisions will affect many investor's decisions. If he goes Crypto, then many would him.
Yes, and some of his close friends are also professional investors so the influence on his tweets is still very large for the public and cryptocurrencies, so it certainly can't be underestimated when he says something through his tweets.