Answer: flamed

AnswerCrossword Clue
FLAMEDSent disparaging e-mail to
FLAMEDCombusted
FLAMEDMade a post in all caps, maybe
FLAMEDGlowed.
FLAMEDBlazed
FLAMEDBurned
FLAMEDBurned brightly
FLAMEDCriticized scathingly, online
flamedFLAME, to burn brightly
flamedtongue-shaped burning gas or vapor
flamedto burn with or glow like flames