Jim Cramer on Sunday expressed concerns about the potential impact of a successful Reddit IPO on the current bull market. What Happened: In a recent CNBC article, Cramer highlighted the unusual nature of Reddit’s IPO, which is expected to be valued at $7 billion, with shares priced between $31 and $34. Despite being in operation for 19 years, Reddit has never turned a profit, relying solely on adjusted EBITDA. “It’s been around for 19 years and it still hasn’t produced anything but adjusted EBITDA (earnings before interest, taxes, depreciation, and amortization), an alternative measure of fina…