Male here. This theory as it applies to erotica does not apply to me. Just not interested in reading it.

Allow users to switch accounts when making posts or comments instead of having to go back to the home screen

People would use these templates to create meandering comic style blog posts and present them as memes. It seems like they were the first generation of memes that went fully mainstream and imo were very bad because people could not help but make the comics very long and boring.