@Anonycat  
Yes, just smarter.

StarDancer is Professor What’s version of Derpy.

@Joshua  

 
Oh my God, I’d completely forgotten about her. But yeah, it seems like you might be right on that. Star Dancer hasn’t been fully explored yet, though. I hope we’ll get to see more of her in future issues.

@Anonycat  
Huh
 
Okay then

@Mellow Rhythm  
I really suggest you to read the manga to find out what happens to her after this couple of panels.

Rather a disappointing ending for a character like her, I would think…

You can’t just create a cute running joke character and then throw her under the bus like that!

@PurpleSmart2  
Oh, I see what’s going on here; I know what her deal is now.
 
She’s Radiant Hope done right.

[accidental double post pls ignore]

@Joshua  

 
Well, it’s a bit more complicated than that, actually…  
She isn’t actually the main villain, but more like the main villain’s henchpony. Basically, she seems to be not evil at all herself, but she’s so blinded by her love for the villain that she’s willing to do anything for him. This was actually implied with the ending of Vol. 1 of the manga.

@Background Pony #8607  
She was the Master’s helper, knowing all along what he was planning to do|| (create an infinite time loop on the festival’s day and use the ponies’ excitement as an endless source of energy to power up a war machine meant for multidimensional conquest) and all the crazy risks involving his plan because to make things worse, it involved science so dangerous that it had been forbidden at multiuniversal levels.  
Star Dancer no only was aware of the Master’s plan, but was also more than OK with it- in fact she wondered why anyone would want to stop him.||

What was her role in this?

Wait… Star Dancer’s a villain this whole time?