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Orangeposting only happened because it was all done in irony.
Nobody genuinely likes AO aside from the fact that his character is the perfect heel for this board. To continue orangeposting for this long, this would mean you'd need more content to talk about, meaning you'd need to unironically watch AO regularly. Even for the sake of the joke, people on this site aren't autistic or masochistic enough to torture themselves this way.
If AO was good then orangeposting would always be alive on /vt/, but that would also mean orangeposting wouldn't be as impactful as it was and nobody would had cared aside from hardcore /jp/ autists.