If Chuck declares on Alice after Bob declares on Chuck, it's legal. But Alice is not allowed to declare on Chuck if Chuck declared on Bob. It is not allowed to use both nations to attack the same nation in an offensive war while involved in a nation sit. The case you're speaking of is legal as oya declared on the WTF nation and the WTF nation declared on Cuba. As it was a defensive war, it is not against the rules. Password and login sharing are part of a nation sit. The distinction to be drawn here is it not relevant if the nation sittee is posting on the forums as long as they don't login to their actual nation during the nation sit. Nation sit requests are cancelled at the behest of the nation sitter or nation sittee if the nation sittee indicates they have returned. There are situations where a player may be able to post on the forums but incapable of logging in-game. It is not moderation's job to judge the reasons involved nor is it yours. It is not unusual for players to request a nation sit when their alliance is at war and they're not active enough to login or they need a break from the game. Nothing out of the ordinary has happened.