Am I the only one that doesn't have a thing for weapons? I just consider them as addons and if they have an extra feature like iron sights or reloads I consider the creator tried out something new (well reloading and iron sights are common nowadays)
As for your instant sniper thing, I don't mind that one bit, uncharted 3 has an instant kill sniper with a very slow reload and limited shots. When I'm killed by it or Kaje's rifle it doesn't bug me because I know it will one hit me. Although in Blockland the bullet has to travel and isn't like most games where it just hits instantly, you still have to aim.