i have never found any proof of herobrine in the gamecodes.
i have gone trough all of the thousands of codes, and nowhere there is a code that suggests that there is such a thing as herobrine.
i wish there was though, because a little bit of secrets and legends in games are fun!
sometimes creepy, and that is okay.
wouldnt it be cool if herobrine was present? like with a spawnrate of 0.07% of spawning?
and they should make it so that if he is in your view range once, he should spawn more, and make him like a boss or something!