user2869: Lurking around our chat room, sometimes I saw some bot post a question, or anything outside our main site Anime.SE, like from Movies.SE or SciFi.SE, always with anime tag, usually for id-request. So, how many SE sites are actually connected to us, and does our site also have the same thing? Have our questions been posted on other SE sites' chat room?

user49: The sites are not exactly linked to our site. What actually happens is that we have a set of feeds that were all added manually.
The sites listed on our All the animations! feed are SciFi and Fantasy, Movies and TV and Japanese Language. More can be added, according to the needs we see fit.
As for other sites that post our content on their room, I am not aware of any way to search for feeds across rooms, so you'd have to check each of them individually.

2869: <p>Lurking around our chat room, sometimes I saw some bot post a question, or anything outside our main site Anime.SE, like from Movies.SE or SciFi.SE, always with <a href="https://anime.stackexchange.com/questions/tagged/anime" class="post-tag" title="show questions tagged &#39;anime&#39;" rel="tag">anime</a> tag, usually for id-request. So, how many SE sites are actually connected to us, and does our site also have the same thing? Have our questions been posted on other SE sites' chat room?</p>
 49: <p>The sites are not exactly linked to our site. What actually happens is that we have a <a href="http://chat.stackexchange.com/rooms/info/6697/maid-cafe-?tab=feeds">set of feeds</a> that were all added manually.<br>
The sites listed on our <a href="http://stackexchange.com/feeds/tagsets/77961/all-the-animations?sort=newest"><em>All the animations!</em> feed</a> are <a href="https://scifi.stackexchange.com/">SciFi and Fantasy</a>, <a href="https://movies.stackexchange.com/">Movies and TV</a> and <a href="https://japanese.stackexchange.com/">Japanese Language</a>. More can be added, according to the needs we see fit.</p>

<p>As for other sites that post our content on their room, I am not aware of any way to search for feeds across rooms, so you'd have to check each of them individually.</p>
