Whosit has been looking at his finances (complaining about 30% research rate, jokingly referring to trashing his economy) which is understandable given his lack of economic traits. As to the others, Byz & Korea have more pressing concerns, and the rest have an economic trait to help out (IIRC).
If any civ is going to get a maintenance shock then it'll be the Ottomans if/when they take the Byz capital: distance, # cities, unit upkeep & underdeveloped lands will hit pretty hard.
If any civ is going to get a maintenance shock then it'll be the Ottomans if/when they take the Byz capital: distance, # cities, unit upkeep & underdeveloped lands will hit pretty hard.