The AI stock suffered a brutal week of trading, and investors have some big questions about the business.Super Micro Computer (SMCI -2.48%) stock got hit hard over the last week of trading. The company's share price ended the period down 28.6% from last Friday's market close, according to data from S&P Global Market Intelligence.On Tuesday, Hindenburg Research published bearish coverage and alleged that Supermicro was a serial offender when it came to bad accounting practices. The short-seller also raised o ...