herorbine himself isnt someone who is bound to the rules of survival nor creative
he is more like a virus in your game that spooks you
so what isnt more unsettling then having things generate like floating water that isnt flowing down or fire in the sky
or randomly finding a bedrock block somewhere
or even a block with no texture
now what would be even better is if you find something like this and then when you look away and then look back, its gone