Of course, the fact that he turned into a winged wolf...thing...helped too, I always did like robotic beast modes like Snapdragon or Apeface et al, so Fangry's almost mythological appearance spoke volumes to me.
He actually got some decent comic time too, especially at the end of the Transformers original un, he even had a bit of a rivalry with Grimlock going on, which considering Grimlock was the de facto Autobot leader at the time, is no mean feat.
In Japan of course, Fangry wasn't Fangry, he was Wilder, a biker gang member with tons of attitude and teenage angst. He kicked a puppy to death, you know. I'm not even lying.The worst that Fangry did was jump Grimlock from behind.