I’ve been called that before myself, and it’s not pleasant. If I could go back in time to that point in the show when the people of Hasbro had just finished airing that episode and got complaints about her character and went to change it, I would tell them. “Ignore those clowns. They’re not worth the effort.”

Don’t worry Derpy, I will show them that they shouldn’t mess with you.

She it’s ok derpy I’ll deal with your bully’s

I called them a crime scene

If you think stopping bullying by bullying will stop bullying, you missed.

… whispers to cat ^{claw them}

Let’s see there… Hominidae, horticulturists, HIT MEN.

Manas Zya!  
(Look it up!)

@Prof.NightJack  
What was that, Sandvich? KILL THEM ALL? Good idea!

[pulls out MP5] Let’s go Derpy. Let’s kill them.

@teslakana
 
Implying you beat them up badly or not? As if that too isn’t bullying? Stinking retribution:
 
“I’m very justified in this.”
 
meanwhile the other party may be thinking this:
 
“WHY DID HE DO THAT TO ME?! D: I’MA MAKE HIM PAY! THAT’LL SHOW HIM! Yeah, I’m very justified in this.”
 
… And it’s a never-ending loop until broken, If one person chooses to break it. What breaks the loop? That depends. Sometimes it is like this:
 
(person bullying) “I’m very justified in this. He did something to me that was wrong.” (the person who did “something wrong” has no idea what happened; the person bullying may have misinterpreted something said.)
 
person victimized forgives and rejects to return the hurt in revenge, then gives the one being mean a present
 
(person who bullied) “What the? Man now I feel awful, that person went and just gave me something I like with no strings attached!”

they called her a retard…  
i called them an ambulance…

@Background Pony #5311
 
“Both Parties” being those who give to you and those who don’t.

They called her a retard.  
I called them a doctor.

Here’s one that’s kind to both parties;
 
They called her a retard;  
I asked why.  
I informed them it’s OK to not insult anyone.
 
I’m going by the “Give to your enemies” Thing. After all, What’s between “Both parties”?
 
I don’t want to be “Left” or “Right”; I’d much rather be straight than wrong.

Probably should be more specific.
 
They called her retard.  
I called them Lord Voldemort’s next victims.

Not all were parented well, Were they?

They Called Her Retard.  
I Called Them Dead.

@Midnight Moon
 
Do I interpret things too seriously for life? :|

They called her a retard.  
I called them targets.

I do think I realize how sad this is now; Kids’ lives are literally in the hands of their parents and others at a young age, And if someone calls them something like that it literally hurts them in more ways than I might want to count. But on the other hand, A loving word said can give love in more ways than I may care to count as well!

“Where do they live my little pony?”

People who “Murdered and beat the shit out of others for Derpy”
 
Well, Murder is not the road to life.

Hears this and gives Derpy a hug before leaving, comes back three and half hours later covered in gore and gives Derpy a package full of muffins  
Here you go, my sweet little angel. If you need me, I’ll be burning my clothes, possibly change my identity and move out of here before the police show up, okay? :)