Brown Mushrooms emit light level of 1

Not a bug. Mushrooms emit light level 1.
Source: http://www.minecraftwiki.net/wiki/Light#Light-emitting_blocks
Please change topic title to something like Please close, not a bug to help the mods close it.

It is on the wiki, but it may not be an intended feature. No one proved whether this is intended or not, but mushrooms emitting light seems unintended to me.

This was never ever intended.
Someone probably saw it and decided to edit the wiki, thinking it was intended. mushrooms should not emit light. if that was the case, then red mushrooms probably would too, and maybe even giant mushrooms.

Exactly. In my opinion, I believe the mods here think everything on the wiki is true, and is run by professional people working at Mojang. Well, I saw that someone wrote that the bug where items zoom to your feet instead of your chest was a new feature. The mods gonna believe that too? Mark this as a bug please, the wiki is not to be trusted, almost every article I have seen on it has a bit of wrong information.

Reopened. Do not issue blanket statements like that, the first comment was posted long before I was a moderator. If you want it reopened, a logical argument is fine, insults don't get you anywhere.

Probably that http://en.wikipedia.org/wiki/Omphalotus_olearius was the model for the brown mushroom:

The jack-o'-lantern mushroom is orange. Its bioluminescence, a blue-green color, can be observed in fresh specimens in low light conditions once the eye becomes dark-adapted. The whole mushroom doesn't glow — only the gills do so. This is due to an enzyme called luciferase, acting upon a compound called luciferin, leading to the emission of light much as fireflies do when glowing.

Light level 1 for brown mushrooms is explicitely in the code, thus intended:

public static void registerBlocks()
    {
...
        blockRegistry.addObject(39, "brown_mushroom", (new BlockMushroom()).setHardness(0.0F).setStepSound(soundTypeGrass).setLightLevel(0.125F).setBlockName("mushroom").setBlockTextureName("mushroom_brown"));
...}

You're right, I apologize for those insults, I wasn't trying to sound like that. And Kumasasa provided evidence this is intended, so thank you for that.