It's sad when someone is ganked by a lvl 90 n a shitty zone like in the middle of Feralas, I called that a spineless motherfucker asshole
But expected to get ganked at the Dark portal , thats where the party is taking place, even place like Tanaris or any other neutral village
And for fuck sake, don't do the quest in Thrallmare, do LFD and run away to Zangarmarsh asap.
Learn how to play, learn where are the red zone, do LFD