Season 8 is my favorite

There is no correct way to be a fan of something.

Just because somebody likes more of a franchise by volume does not make them more of a true fan. Equally, just because people like new entries that you reject does not make you more of a true fan.

Critiquing and discussing the content of a franchise is something to be encouraged. Making personal judgements about other people and posing your view of a franchise as the true one is completely petty, stupid, and unproductive.

The Simpsons went from genius to garbage really quickly somewhere between Seasons 8 and 10. The only reason it survived as long as it did was that there were always new viewers who didn't remember how good it used to be.