Another celebrity bites the dust on Twitter, but not for the reason you may think. Hilary Duff's husband, music producer Matthew Koma, was permanently suspended from the social platform on Tuesday after impersonating another famous star. Koma, 35, took aim at Gwyneth Paltrow when he changed his username on Twitter to her name and responded to a post about her skiing lawsuit that concluded last week.The tweet featured a photo of Paltrow leaving court and reportedly offering her best wishes to plaintiff Terry Sanderson. The original poster of the Tweet, with an equally deceiving verified username of @StevieNicks420 wrote, "I'll take my dollar now," referencing the single dollar Paltrow was awarded after winning the case.