Discussion here: https://incubator.wikimedia.org/w/index.php?title=Incubator:Community_Portal&oldid=4102066#Account_creator_flag_and_workshops
Please configure Incubator to make Sysops have the right to grant and remove this flag. (The discussion mentions bureaucrats, but all 'crats on Incubator are sysops by policy, so granting/removing this flag does not have to be put separately in the 'crat user rights.) For clarity: Sysops will continue to have the right "noratelimit" as part of the administrator toolkit.