So here's the problem with a comic book character that's been around ten, twenty, seventy years … it's hard to come up with something new for them to do, some fresh approach that makes current fans clap with appreciation and non-fans come over and buy the comic.
At which point, editors and/or writers usually devise a cunning plan to reinvent the character as something All-New! All-Different! And usually all-awful, as the core of what makes the character interesting and follow-worthy in the first place usually gets tossed out along with it. Fortunately, these reinventions usually get undone or even retconned away within a short time, and often are never mentioned again.
Fun list here, though I disagree mightily on their thoughts on Peter David's Hulk … #ddtb
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The 6 Most Unintentionally Hilarious Superhero Reinventions
Classic comic book characters have successfully been reinvented over the years. But they kept being succesful because the core was the same — no one would ever mess with that, would they?