Darby Conley's Get Fuzzy has attracted a moderately sized vegan high school and collegiate fanbase due to numerous appearances of PETA apparel. The catch? Bucky uses PETA as a shield for misbehaving under the guise of a revolt against whatever stick is up his butt during that installment, while Satchel is too dumb to know what they're really all about. This isn't official support from the organization - just many younger members without enough English courses under their belt to recognize the mockery of their hijinks. (And maybe a few who don't care.) Will usually occur in forums, blogs, journals, or news commentary box debates.
Berke Breathed used to complain that, no matter how unsympathetic he made Steve Dallas seem in The Academia Waltz, many University of Texas students couldn't help but LOVE the character.
A similar thing happened with Bill the Cat. No matter what he did with the character, including making him a coke addict, a communist spy, an illegal arms dealer, and Jeanne Kirkpatrick's lover, people couldn't get enough of him. Breathed created Bill to be the anti-Garfield. Breathed must have failed to realize how many people in his audience hate Garfield, and were more than willing to buy Bill the Cat merchandise in protest. Breathed even joked in the late 1990s that there were probably still tribes in Africa using old hollowed-out Bill the Cat dolls as banana hammocks.
Many real-life human resource directors love Catbert from Dilbert, despite him being a (usually) exaggerated caricature of how thoughtless and self-serving most HR directors are. Nonetheless, there still have been some HR directors out there that have asked Scott Adams to make Catbert nicer, so as to make the portrayal more fair. Thankfully, Adams has not abided their wishes.