The problem is if anyone takes notice of them and the crap they say.
They should be ignored.
Both are really big names in the tech space, especially Elon Musk. It's almost guaranteed that Bitcoin's price will once again move violently depending on what Elon's sentiment is going to be, unfortunately.
And I think it's not going to be as violent as you might think.
We all know his stance and there's not much negativity he can add to this.
Can he say bitcoin sucks? He already did. He also mocked maximalists and the whole community, he even destroyed the price of his beloved dogecoin.
People who depend on his opinion for investments are already out of bitcoin and those who didn't won't suddenly start to.