There's a difference between changing results (or adding) and not supporting a feature that is dangerous and rarely used. Kind-of like banning handguns vs. providing unknownly modified guns.
Google Plus played less with people's emotions, that's why it sucked as a social media but was quite okay to follow content makers and to manage/participate in groups.
One of the primary issue with these alternative social networks is the lack of good content, RSS integration should honestly be one of their main priorities.