A blend of the root words 'doomer' and 'homesteader'.
I doomsteader is a person who sets up a homestead in preparation for doomsday or more commonly the immanent collapse of modern civilization.
The doomsteaders in the ecovillage have their cellars full of food, supplies and defensive weapons.
The most badass demon killer this side of the universe "They are rage, brutal, without mercy. But you. You will be worse. Rip and tear, until it is done".-King Novik
The mark of the doomslayer was burned upon his crypt, a warning to all of Hell that the terror within must never be freed. There he lies still, and ever more, in silent suffering. - Slayer's Testament
A disgruntled and cynical person, usually a gamer roaming the forums and internet proclaiming the coming death of a certain game - usually following a controversial game update/patch.
Matt: So Dave, how do you like the new Clash of Clans update?
Dave: They really screwed over the casual player by destroying farming. I think they have about one month to fix things or all casuals will leave and the game will for sure die.
Matt: You're such a doomsayer, Dave.