The Keys table on the Minecraft Wiki doesn't say anything about 3, or even 2. Just 0 (Survival) and 1 (Creative).
Nope. There's only... 0 = Survival 1= Creative And with Minecraft '1.0' we have Hardcore Mode. Not sure If they will add 2 (at least) in the Server Keys.
Minecraft 1.0, running server in HardCore mode: * Player dies * World gets deleted And so the raging began...
maybe more like *player dies* *gets banned from server* i know that it exist plugins for this but i'm just checkin'
Or get kicked out from the server rather than getting banned I don't really see a use for Hardcore Mode in Servers.
Maybe for a reeaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaally hardcore survival server (*admin dies* *gets banned*)