(Bloomberg) -- The equity lifeline used by many Bitcoin miners to help weather the most recent crypto winter is beginning to irk some shareholders. Most Read from BloombergWagner Chief Prigozhin Listed Aboard Crashed Jet, Reports SayHuawei Building Secret Network for Chips, Trade Group WarnsWagner Chief Prigozhin Was in Deadly Jet Crash, Russia SaysWagner Chief Yevgeny Prigozhin, Mercenary Who Defied Putin, Is Presumed DeadBRICS Asks Saudi, Iran, Other Nations to Join to Add HeftThe 12 major pub