Blockchain technology and crypto-currencies are areas where there is an abundance of gurus and experts.
Often reading few articles and maybe doing few trades is all that is needed to claim being an expert or influencer.
Wishful thinking attributes imaginary new qualities to a technology which in reality is pretty cumbersome.
Regarding the question - all of the information on the blocks of the blockchain is public and accessible.
It is not protected and even big tech companies can view it if they wish.