Short-selling firm Ningi Research has taken a short position on Grindr Inc. GRND, alleging the company is misleading investors with inflated metrics, hiding an SEC investigation, and suffering from a rapidly deteriorating product while insiders sell off hundreds of millions in stock.Check out GRND stock price here. Ningi Alleges GRND Of Inflating User MetricsThe report claims management’s aggressive monetization tactics have created a “short-term sugar high” in revenue that masks a collapsing user base and ...