![enter image description here]
What does the image description here affect? Does it ever show up somehow other than when I edit a post?
I put "yuk" there. So what?
I once had a clever remark for a question. (This was in a different stackexchange forum.) It was mostly an image, so I posted it as an Answer. But the software (or maybe a moderator) changed it to a Comment. Now it no longer shows the image, just a link to the image together with the text "enter image description here", since I had not entered a description.
Check the source code
<img alt="yuk" src="http://i.stack.imgur.com/EMU8i.png"></img>