I’d guess the simple answer may be that people don’t care/know, but for those that have ditched Facebook for whatever reason, yet still use Instagram, it’s a little surprising.
Is it partly a result of it being a more focused/limited form of social media that filters out some of the stuff people didn’t like from Facebook?
Haha, all I know is the admins of my instances are most likely no Steve. Admins are as pseudonymous as I am, although we probably have similar hope of prospering in communities that are better than corporate-controlled ones.