There is no “misresporting”. Selfhosted forum is a topic-based instance, like many other that set up as part of !communick_news_network .
alien.top is a fediverser instance, which is done to help mirror content and to help people from reddit to migrate.
The whole idea of fediverser is to make migration for redditors as easy as possible and in a way that they when they migrate they have access to all the content they were used to.