`--compat-option no-live-chat` should disable danmaku

Closes #4387

README.md

@@ -139,7 +139,7 @@ Some of yt-dlp's default options are different from that of youtube-dl and youtu
 * `playlist_index` behaves differently when used with options like `--playlist-reverse` and `--playlist-items`. See [#302](https://github.com/yt-dlp/yt-dlp/issues/302) for details. You can use `--compat-options playlist-index` if you want to keep the earlier behavior
 * The output of `-F` is listed in a new format. Use `--compat-options list-formats` to revert this
 * All *experiences* of a funimation episode are considered as a single video. This behavior breaks existing archives. Use `--compat-options seperate-video-versions` to extract information from only the default player
-* Youtube live chat (if available) is considered as a subtitle. Use `--sub-langs all,-live_chat` to download all subtitles except live chat. You can also use `--compat-options no-live-chat` to prevent live chat from downloading
+* Live chats (if available) are considered as subtitles. Use `--sub-langs all,-live_chat` to download all subtitles except live chat. You can also use `--compat-options no-live-chat` to prevent any live chat/danmaku from downloading
 * Youtube channel URLs are automatically redirected to `/video`. Append a `/featured` to the URL to download only the videos in the home page. If the channel does not have a videos tab, we try to download the equivalent `UU` playlist instead. For all other tabs, if the channel does not show the requested tab, an error will be raised. Also, `/live` URLs raise an error if there are no live videos instead of silently downloading the entire channel. You may use `--compat-options no-youtube-channel-redirect` to revert all these redirections
 * Unavailable videos are also listed for youtube playlists. Use `--compat-options no-youtube-unavailable-videos` to remove this
 * If `ffmpeg` is used as the downloader, the downloading and merging of formats happen in a single step when possible. Use `--compat-options no-direct-merge` to revert this

yt_dlp/extractor/common.py

@@ -647,10 +647,10 @@ class InfoExtractor:
                         return None
                     if self._x_forwarded_for_ip:
                         ie_result['__x_forwarded_for_ip'] = self._x_forwarded_for_ip
-                    subtitles = ie_result.get('subtitles')
-                    if (subtitles and 'live_chat' in subtitles
-                            and 'no-live-chat' in self.get_param('compat_opts', [])):
-                        del subtitles['live_chat']
+                    subtitles = ie_result.get('subtitles') or {}
+                    if 'no-live-chat' in self.get_param('compat_opts'):
+                        for lang in ('live_chat', 'comments', 'danmaku'):
+                            subtitles.pop(lang, None)
                     return ie_result
                 except GeoRestrictedError as e:
                     if self.__maybe_fake_ip_and_retry(e.countries):