I know they screwed over Cartoon Network pretty badly. Closed its main studios and merged it with Warner Bros. Animation, and season 2 of Mao Mao: Heroes of Pure Heart was practically done and they sold the franchise as a tax write-off, if I recall.
The most controversial write-off in general however was Coyote vs. ACME, the backlash WBD got for trying to sell that off got them to actually reverse their decision.
I know they screwed over Cartoon Network pretty badly. Closed its main studios and merged it with Warner Bros. Animation, and season 2 of Mao Mao: Heroes of Pure Heart was practically done and they sold the franchise as a tax write-off, if I recall.
The most controversial write-off in general however was Coyote vs. ACME, the backlash WBD got for trying to sell that off got them to actually reverse their decision.