What is the light bulb icon below my responses?

Question

Help please...I am icon-challenged.  

Answer 1

I have no idea! :) lol. Does it mean we are smart? :)

Comments

Well...it's dark, so...LMAO!

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Lol So you're saying we're dim? :P lol

I clicked it and my post turned pale.  Maybe it makes your post either invisible or anonymous?  I'm going to click it in this answer and see.

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It's supposed to mean you DO have an idea, haha

Answer 2

Its used to hide responses which are posted twice.

Comments

Ok. I saw that it hid my post. Couldn't figure out why I'd wanna hide it, but your answer makes sense. :)

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Tyvm

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Yvw :)

Answer 3

The light hides the answer to other users.

Answer 4

lolz   Icon challenged