By Ross Kerber - More frequent shareholder revolts at companies like Norwegian Cruise Line Holdings and General Electric show corporate directors should hesitate to hike CEO pay during tough times, according to a new report. Proxy votes against executive pay at S&P 500 companies became more common last year and were often sparked by "questionable practices and metrics" like when companies eased performance targets during the COVID-19 pandemic, according to a report by As You Sow, a shareholder advocacy group focused on environmental, social and governance (ESG) matters. As companies begin to issue their proxy statements showing compensation details in coming months, some will have gotten the message they should not tweak formulas to leaders' advantage even if a crisis looms, said Rosanna Landis Weaver, one of the report's authors. "Last year we could tell starkly when companies were doing these things, and shareholders responded," she said.