[cleanup, docs] Misc cleanup

Closes #2828, closes #2734, closes #2802, closes #2937

CONTRIBUTING.md

@@ -11,6 +11,7 @@
     - [Is anyone going to need the feature?](#is-anyone-going-to-need-the-feature)
     - [Is your question about yt-dlp?](#is-your-question-about-yt-dlp)
     - [Are you willing to share account details if needed?](#are-you-willing-to-share-account-details-if-needed)
+    - [Is the website primarily used for piracy](#is-the-website-primarily-used-for-piracy)
 - [DEVELOPER INSTRUCTIONS](#developer-instructions)
     - [Adding new feature or making overarching changes](#adding-new-feature-or-making-overarching-changes)
     - [Adding support for a new site](#adding-support-for-a-new-site)
@@ -24,6 +25,7 @@
         - [Collapse fallbacks](#collapse-fallbacks)
         - [Trailing parentheses](#trailing-parentheses)
         - [Use convenience conversion and parsing functions](#use-convenience-conversion-and-parsing-functions)
+    - [My pull request is labeled pending-fixes](#my-pull-request-is-labeled-pending-fixes)
 - [EMBEDDING YT-DLP](README.md#embedding-yt-dlp)
 
 
@@ -123,6 +125,10 @@ While these steps won't necessarily ensure that no misuse of the account takes p
 - Change the password before sharing the account to something random (use [this](https://passwordsgenerator.net/) if you don't have a random password generator).
 - Change the password after receiving the account back.
 
+### Is the website primarily used for piracy?
+
+We follow [youtube-dl's policy](https://github.com/ytdl-org/youtube-dl#can-you-add-support-for-this-anime-video-site-or-site-which-shows-current-movies-for-free) to not support services that is primarily used for infringing copyright. Additionally, it has been decided to not to support porn sites that specialize in deep fake. We also cannot support any service that serves only [DRM protected content](https://en.wikipedia.org/wiki/Digital_rights_management). 
+
 
 
 
@@ -210,7 +216,7 @@ After you have ensured this site is distributing its content legally, you can fo
             }
     ```
 1. Add an import in [`yt_dlp/extractor/extractors.py`](yt_dlp/extractor/extractors.py).
-1. Run `python test/test_download.py TestDownload.test_YourExtractor`. This *should fail* at first, but you can continually re-run it until you're done. If you decide to add more than one test, the tests will then be named `TestDownload.test_YourExtractor`, `TestDownload.test_YourExtractor_1`, `TestDownload.test_YourExtractor_2`, etc. Note that tests with `only_matching` key in test's dict are not counted in. You can also run all the tests in one go with `TestDownload.test_YourExtractor_all`
+1. Run `python test/test_download.py TestDownload.test_YourExtractor` (note that `YourExtractor` doesn't end with `IE`). This *should fail* at first, but you can continually re-run it until you're done. If you decide to add more than one test, the tests will then be named `TestDownload.test_YourExtractor`, `TestDownload.test_YourExtractor_1`, `TestDownload.test_YourExtractor_2`, etc. Note that tests with `only_matching` key in test's dict are not counted in. You can also run all the tests in one go with `TestDownload.test_YourExtractor_all`
 1. Make sure you have atleast one test for your extractor. Even if all videos covered by the extractor are expected to be inaccessible for automated testing, tests should still be added with a `skip` parameter indicating why the particular test is disabled from running.
 1. Have a look at [`yt_dlp/extractor/common.py`](yt_dlp/extractor/common.py) for possible helper methods and a [detailed description of what your extractor should and may return](yt_dlp/extractor/common.py#L91-L426). Add tests and code for as many as you want.
 1. Make sure your code follows [yt-dlp coding conventions](#yt-dlp-coding-conventions) and check the code with [flake8](https://flake8.pycqa.org/en/latest/index.html#quickstart):
@@ -658,6 +664,10 @@ duration = float_or_none(video.get('durationMs'), scale=1000)
 view_count = int_or_none(video.get('views'))
 ```
 
+# My pull request is labeled pending-fixes
+
+The `pending-fixes` label is added when there are changes requested to a PR. When the necessary changes are made, the label should be removed. However, despite our best efforts, it may sometimes happen that the maintainer did not see the changes or forgot to remove the label. If your PR is still marked as `pending-fixes` a few days after all requested changes have been made, feel free to ping the maintainer who labeled your issue and ask them to re-review and remove the label.
+