During any marketing of a security, the SEC requires registrants to provide "a discussion of the material factors that make an investment in the registrant or offering speculative or risky". The focus is on disclosing only "material" risks, defined as those "to which reasonable investors would attach importance in making investment or voting decisions"

This is covered by Regulation S-K, Item 105.

Hey BlackRock... just try it.

I would be happy to dump your new created coins from a fork and get more BTC (like I did in 2017).

but no disclaimer for "all transactions happen on the blockchain"

Wouldn’t their ETF’s go to pennies if they did that?