Excuse me? All servers. As an admin I have denied tons of reports named "Death evading" whose proof shows a player who intentionally drowns or falls down from a building while in a fight. This is not considered death-evading since the player dies anyway. It is considered death-evading when the player saves his life using /q, pausing the game, etc. And it is considered command-abusing when the player uses /kill while in a fight, which is forbidden too. I don't know how old you are in this game, but it has always been like that. And as I said, I had never found out a server that had this rule about drowning while in a fight, I don't know if other servers are establishing this rule lately because I have been very inactive. But anyways, what is your problem? I already said that I accept my fault for not reading the rules of this server.
Saying that the F1 hack evidence is clear says how good admin you would be. Catching a F1 hacker is a very long process that requires a lot of effort and time, gathering enough evidences in different situations to finally make a conclusion and proceed to ban the player.