Jubilee wrote:The Flinstones and Simpsons never claimed to advance continuity. They don't consistently have to retcon and bullshit their readers. Superhero comics are pretty much unique in that respect.
No, they did. For the Flintstones they had Peebles and BamBam show up. That was an advance. Characters have died on the Simpsons and this has been played upon with the survivors in other episodes. That is also an advance.
Retcons come about due to screw ups by the comic creators or with simply having a change of mind. Retconning the timeline just gives, in a sense, what you want while not altering the character(s) heavily.
Do not read any old pulp stories... you may scream at them as if they were a Rob Liefeld comic for all the retcons. Same goes with a ton of detective series and spy stories too.
Poirot, Miss Marple, Sherlock Holmes, James Bond, George Smiley, Nero Wolfe... just some examples.