I suggested an edit which added alt text for the image of that question.
It was rejected by 2 users giving the following as the reason:
This edit does not make the post even a little bit easier to read, easier to find, more accurate or more accessible. Changes are either completely superfluous or actively harm readability.
I don't know which part of easier to find did they not understand.
The fun part of this is that one of the users approved another similar edit of mine. (Huh??)
I think I was under the wrong impression that Stack Exchange wanted traffic from search engine queries and alt text helps in that (though their contribution is small).