Repository: yt-dlp
Issue: Motherless extractor downloads wrong thing for removed files
Labels: NSFW,site-bug,patch-available

### DO NOT REMOVE OR SKIP THE ISSUE TEMPLATE

- [X] I understand that I will be **blocked** if I *intentionally* remove or skip any mandatory\* field

### Checklist

- [X] I'm reporting that yt-dlp is broken on a **supported** site
- [X] I've verified that I have **updated yt-dlp to nightly or master** ([update instructions](https://github.com/yt-dlp/yt-dlp#update-channels))
- [X] I've checked that all provided URLs are playable in a browser with the same IP and same login details
- [X] I've checked that all URLs and arguments with special characters are [properly quoted or escaped](https://github.com/yt-dlp/yt-dlp/wiki/FAQ#video-url-contains-an-ampersand--and-im-getting-some-strange-output-1-2839-or-v-is-not-recognized-as-an-internal-or-external-command)
- [X] I've searched [known issues](https://github.com/yt-dlp/yt-dlp/issues/3766) and the [bugtracker](https://github.com/yt-dlp/yt-dlp/issues?q=) for similar issues **including closed ones**. DO NOT post duplicates
- [X] I've read the [guidelines for opening an issue](https://github.com/yt-dlp/yt-dlp/blob/master/CONTRIBUTING.md#opening-an-issue)
- [ ] I've read about [sharing account credentials](https://github.com/yt-dlp/yt-dlp/blob/master/CONTRIBUTING.md#are-you-willing-to-share-account-details-if-needed) and I'm willing to share it if required

### Region

_No response_

### Provide a description that is worded well enough to be understood

Motherless extractor downloads the wrong thing for removed files. Motherless serves a 200 for deleted files with the only indication that you've been served a completely different file being:

```html
<div class="error-page view-page py-3">
    <h1 class="p-0 m-0">
        File not found. Nothing to see here!
    </h1>
            <p class="reason motherless-red text-huge py-2 m-0">
            &bull; (((sometimes a reason, not always))) &bull;
        </p>
        <p class="text-huge m-0">
        Here's another video instead...
    </p>
</div>        
```

(The other strings that the extractor looks for are used in other cases, f.e. when a *gallery* is deleted)

NSFW example: https://motherless.com/8850983

### Provide verbose output that clearly demonstrates the problem

- [X] Run **your** yt-dlp command with **-vU** flag added (`yt-dlp -vU <your command line>`)
- [X] If using API, add `'verbose': True` to `YoutubeDL` params instead
- [X] Copy the WHOLE output (starting with `[debug] Command-line config`) and insert it below

### Complete Verbose Output

```shell
Nah but here you go

diff --git a/yt_dlp/extractor/motherless.py b/yt_dlp/extractor/motherless.py
index 160150a7b..982d8b60e 100644
--- a/yt_dlp/extractor/motherless.py
+++ b/yt_dlp/extractor/motherless.py
@@ -114,7 +114,8 @@ def _real_extract(self, url):
 
         if any(p in webpage for p in (
                 '<title>404 - MOTHERLESS.COM<',
-                ">The page you're looking for cannot be found.<")):
+                ">The page you're looking for cannot be found.<",
+                "File not found. Nothing to see here!")):
             raise ExtractorError('Video %s does not exist' % video_id, expected=True)
 
         if '>The content you are trying to view is for friends only.' in webpage:
```