user9093: Image identification-request is one of the most useful features of Anime and Manga StackExchange, when you are getting at the end of "Google-Image-Search".
Here an example.
But sometimes I see questions like these:

What anime is this winking girl from?
What anime is this male character with brown hair and pierced ears from?
Anyone know what anime this gif is from?

... which you could easily solve with Google reverse image search. All these questions above get upvoted or answered.
Therefore I'm asking: Why some image search questions which could easily be solved with Google gets upvoted, instead get downvoted like this one. Both are the same kind of questions but get different votes.

user1398: The first and second are indeed lazy questions. However, people from other sites who are unaware of the reverse image search feature will upvote them when the question gets featured on the hot network questions list. Same for new users who are unaware of reverse image search feature.
For the third question, just specify the image in reverse image search doesn't give any usable result, and it's probably necessary to do reverse image search on some frame in to get the desired result.
(I'm assuming only Google Reverse Image Search, since it is the only thing featured in the warning. General users don't read and search meta before asking question.)
There are only a handful of users who are aware of the feature and bother to vote on identification-request questions, so if the question gets exposed to new users and users from other sites of the network, it will get their upvotes.
The next vote also depends on the current score (upvotes + downvotes) of the question, due to the mob mentality. This may explain the case with the image you cited at the end.

9093: <p>Image identification-request is one of the most useful features of Anime and Manga StackExchange, when you are getting at the end of "Google-Image-Search".</p>

<p>Here an <a href="https://anime.stackexchange.com/questions/18463/what-is-this-picture-of-a-smiling-man-from">example</a>.</p>

<p>But sometimes I see questions like these:</p>

<ul>
<li><a href="https://anime.stackexchange.com/questions/4282/what-anime-is-this-winking-girl-from/4283#4283">What anime is this winking girl from?</a></li>
<li><a href="https://anime.stackexchange.com/questions/8322/what-anime-is-this-male-character-with-brown-hair-and-pierced-ears-from?rq=1">What anime is this male character with brown hair and pierced ears from?</a></li>
<li><a href="https://anime.stackexchange.com/questions/7512/anyone-know-what-anime-this-gif-is-from?rq=1">Anyone know what anime this gif is from?</a></li>
</ul>

<p>... which you could easily solve with Google reverse image search. All these questions above get upvoted or answered.</p>

<p><strong>Therefore I'm asking: Why some image search questions which could easily be solved with Google gets upvoted, instead get downvoted like <a href="https://i.stack.imgur.com/9nKUZ.jpg" rel="nofollow noreferrer">this one</a>. Both are the same kind of questions but get different votes.</strong></p>
 1398: <p>The <a href="https://anime.stackexchange.com/questions/4282/what-anime-is-this-winking-girl-from/4283#42830">first</a> and <a href="https://anime.stackexchange.com/questions/8322/what-anime-is-this-male-character-with-brown-hair-and-pierced-ears-from?rq=1">second</a> are indeed lazy questions. However, people from other sites who are unaware of the reverse image search feature will upvote them when the question gets featured on the hot network questions list. Same for new users who are unaware of reverse image search feature.</p>

<p>For the <a href="https://anime.stackexchange.com/questions/7512/anyone-know-what-anime-this-gif-is-from?rq=1">third question</a>, just specify the image in reverse image search doesn't give any usable result, and it's probably necessary to do reverse image search on some frame in to get the desired result.</p>

<p>(I'm assuming only Google Reverse Image Search, since it is the only thing featured in the warning. General users don't read and search meta before asking question.)</p>

<p>There are only a handful of users who are aware of the feature <strong>and</strong> bother to vote on <a href="https://anime.stackexchange.com/questions/tagged/identification-request" class="post-tag" title="show questions tagged &#39;identification-request&#39;" rel="tag">identification-request</a> questions, so if the question gets exposed to new users and users from other sites of the network, it will get their upvotes.</p>

<p>The next vote also depends on the current score (upvotes + downvotes) of the question, due to the mob mentality. This may explain the case with the image you cited at the end.</p>
