I've seen alot of posts about the imfamous 'Herobrine', people spam stuff saying "i did se him i just lost the picture!!!", how convienient. So, you somehow lost a picture STORED ON YOUR COMPUTER of a strange white-eyed man who sents your house on fire and builds random totem poles in your world. Srsly?
'Noobs' endeavor to say that he is real, make false claims, and post multiple topics on the forums, youtube and here. Most likely people will begin to be annoyed at you, and if you continue to say "yes i saw him, my sister had no flint and steel but her house burned down!", you will probably end up getting banned.

Now, this is what I have to say :

1 - The person who created the myth realised what a mess he had created and said that it was a prank, people belived that it was real, even though he said it was a joke. They heard wat they wanted to hear, a mystery that was complete faeces, and they carried on ranting about, searching for the illusive Herobrine.

2 - Notch even said himself THAT IT WAS NEVER REAL. And there was never any coding for him.

3 - If Jeb and Notch can't even add water splash potions, because 'It would be too hard to implement'. How on earth could they add a man who stalks you setting things on fire and building strange structures?

ONE LAST MESSAGE (IN BRIGHT RED BOLD TO MAKE YOU UNDERSTAND)

HE WAS NEVER REAL, HE NEVER HAD ANY CODING, THERE WAS NEVER ANY SKIN OF HIM IN THE .JAR, NOTCH SAID HE WASN'T REAL AND NEVER WILL BE AND FINALLY, THE ORIGINAL CREATOR OF HIM SAID IT WAS A JOKE.
SO WAKE UP FROM THIS NOOBISH DREAM OF FAME FROM A 'SIGHTING' OF HEROBRINE, LEAVE IT ALONE, NOBODY WILL EVER BELIEVE YOU.