Any conversations are allowed in the General Discussion section of our forum. However, we have frequent irrelevant bot posts. If you have a post count of more than a few or your question appears to be legitimate, we’ll leave it. If you’re a first time user and the post is questionable, it may get deleted.
The simplest solution is probably correct - it was pinned in the old forum software, so it got pinned automatically in the migration. I don’t know how often people really look through pinned stuff in any event, so…