Golden Finance reports that according to cryptocurrency industry insider Andrew AP Abacus, Grayscale disclosed that the mini version of GBTC not only charges high fees for long-term investors in the existing low-cost base, but also uses part of the assets to launch a new low-cost product to raise funds. , very unfriendly to existing investors, and although it may be legally compliant, it is unconvincing. The person also said that he disagreed with Grayscale CEO Sonnenshein's possible defense of the move on CNBC and that investors should not trust Grayscale to manage their funds.