Yes, he's a multi millionaire and set to just get richer and richer. If I thought he'd nicked one of my songs (I'm not a songwriter though but I could pretend) then I'd sue him too.Exactly this. It would make no sense to sue over a song that has made no money.
Ed's have coined it in - plus he has most of the writing credits as well as performance so I has a high % of the total -so he's going to get targeted.
Did Def Leppard sue One Direction for using Pour Some Sugar on Me as their song Midnight Memories?