Her only character trait is "Australian accent."

That too, but what really sealed the deal was that Zeo Xmas episode. It's like Saban traveled to the future and watched Digimon Adventure 02's epilogue and then made it into an episode of Zeo.

Oh jeez, I remember that episode...

Adam replaced Zack, want to tell me what's wrong with Adam? No because he was played by Johnny Young Bosch.

The final episode of 02 was fine, but that epilogue :thumbdown. I think JesuOtaku summed it up the best in her retrospective of the series "These last three minutes is cannon HAHAHAHAHA!"

Care to tell me the relevance? Because I fail to see it.
Adam's replacement of Zack wasn't as terrible because Zack's personality trait was "Black guy."

Because you shouldn't base your opinion on a character because they replaced your personal favorite. I don't hate Karone because she replaced Kendrix in Lost Galaxy. Yes I liked Kendrix, what of it?

Zack. God that first season of Power Rangers was dangerously close to racist.

"Okay, Okay. The Black Kid we got? Yea, he'll be Black Ranger. Use an Axe and Pilot an Elephant!"
"And the asian girl?"
"Her? Yellow Ranger. She'll use Sai, instantly know Karate, and pilot a Tiger! It's all so perfect it fits together wonderfully!"

didnt saban or someone say they never noticed the color thing until it was pointed out to them too late?

Yes. But I don't believe it. Someone, somewhere, in Saban's devolopment team had to notice what was happening.

The yellow ranger used daggers, not sai.