Bitcoin critic Peter Schiff has intensified his criticism of Strategy’s $STRC perpetual preferred stock, labeling it an "obvious Ponzi" scheme and questioning the U.S. Securities and Exchange Commission's oversight. Schiff argues that the stock's 11.5% annual dividend yield is the primary attraction for investors, overshadowing its Bitcoin exposure. He warns that the funding model could lead to shareholder dilution or forced Bitcoin sales.Schiff's comments come amid a recovery in $STRC's value and a 9.39% rise in MSTR shares, with renewed optimism from analysts. He criticized the SEC for allowing the continued promotion of $STRC without intervention and hosted discussions to challenge his claims. Schiff also expressed concerns about Strategy's capital strategy, suggesting it may need to issue more preferred shares or sell Bitcoin to meet financial obligations, potentially impacting its balance sheet.