Mr.Myoozik
StarTrix Forever! - Derpi Supporter
Silly Pony - Celebrated the 13th anniversary of MLP:FIM, and 40 years of MLP!
Shimmering Smile - Celebrated the 10th anniversary of Equestria Girls!
Solar Hero - Went above and beyond for the Solar Deity, drawing from the power of the sun itself to bring balance to the fight against the Lunar Insurrection (April Fools 2023).
Flower Trio - Helped others get their OC into the 2023 Derpibooru Collab.
Roseluck - Had their OC in the 2023 Derpibooru Collab.
King Sombra - Celebrated the 10th anniversary of The Crystal Empire!
A Lovely Nightmare Night - Celebrated the 12th anniversary of MLP:FIM!
Princess of Love - Extra special version for those who participated in the Canterlot Wedding 10th anniversary event by contributing art.
Tree of Harmony - Drew someone's OC for the 2022 Community Collab

Music Connoisseur
Where can I get one?
Cyborg_pony
Lunar Supporter - Helped forge New Lunar Republic's freedom in the face of the Solar Empire's oppressive tyrannical regime (April Fools 2023).
My Little Pony - 1992 Edition
Thread Starter - Started a thread with over 100 pages

@PonyPon  
Changlings can mimic sounds, so maybe a possible defense mechanism to make a distress call of the nearest creature.
Lord WyrmSpawN
Solar Supporter - Fought against the New Lunar Republic rebellion on the side of the Solar Deity (April Fools 2023).
Non-Fungible Trixie -
Thread Starter - MLP G5 Discussion and Speculation Thread
My Little Pony - 1992 Edition
Wallet After Summer Sale -
Friendship, Art, and Magic (2019) - Celebrated Derpibooru's seventh year anniversary with friends.
Friendship, Art, and Magic (2018) - Celebrated Derpibooru's six year anniversary with friends.
Not a Llama - Happy April Fools Day!
Friendship, Art, and Magic (2017) - Celebrated Derpibooru's five year anniversary with friends.
The End wasn't The End - Found a new home after the great exodus of 2012

Lingering Wyvern
You sure that ain’t a bat?
AzriBoss
Lunar Supporter - Helped forge New Lunar Republic's freedom in the face of the Solar Empire's oppressive tyrannical regime (April Fools 2023).
Magnificent Metadata Maniac - #1 Assistant
Non-Fungible Trixie -
Fine Arts - Two hundred uploads with a score of over a hundred (Safe/Suggestive)
Perfect Pony Plot Provider - Uploader of 10+ images with 350 upvotes or more (Questionable/Explicit)
Preenhub - We all know what you were up to this evening~
My Little Pony - 1992 Edition

Fennekin The Firefox
Poor changeling
Sanagi 蛹
My Little Pony - 1992 Edition
Wallet After Summer Sale -
Equality - In our state, we do not stand out.
Not a Llama - Happy April Fools Day!

The bug seems bugged
Meanlucario
Silly Pony - Celebrated the 13th anniversary of MLP:FIM, and 40 years of MLP!
Shimmering Smile - Celebrated the 10th anniversary of Equestria Girls!
Solar Guardian - Refused to surrender in the face of the Lunar rebellion and showed utmost loyalty to the Solar Empire (April Fools 2023).
Roseluck - Had their OC in the 2023 Derpibooru Collab.
King Sombra - Celebrated the 10th anniversary of The Crystal Empire!
A Lovely Nightmare Night - Celebrated the 12th anniversary of MLP:FIM!
Princess of Love - Extra special version for those who participated in the Canterlot Wedding 10th anniversary event by contributing art.
Elements of Harmony - Had an OC in the 2022 Community Collab
Non-Fungible Trixie -
Kinship Through Differences - Celebrated the 11th anniversary of MLP:FIM!

Time to get spooky
Ah, child cruelty.
Background Pony #FC59
changeling abuse
Nightweaver20xx
My Little Pony - 1992 Edition
Wallet After Summer Sale -
Birthday Cake - Celebrated MLP's 7th birthday
Happy Derpy! -
Platinum bit -
Emerald -
Artist -

Evil
Gentle, Luna! Do you not understand the word “gentle?” :O
Billblok
A Really Classy Artist - 250+ images under their artist tag
An Artist Who Rocks - 100+ images under his artist tag
Artist -

Fluff Artist
*Cicada noises intensify*
Background Human
Lunar Supporter - Helped forge New Lunar Republic's freedom in the face of the Solar Empire's oppressive tyrannical regime (April Fools 2023).
Preenhub - We all know what you were up to this evening~
My Little Pony - 1992 Edition
Not a Llama - Happy April Fools Day!

CHS, Class of 20XX
Please don’t squeeze the changeling.
evan555alpha
Crazylis - Derpi Supporter
Perfect Pony Plot Provider - Uploader of 10+ images with 350 upvotes or more (Questionable/Explicit)
The Power of Love - Given to a publicly verified artist with an image under their artist’s tag that has reached 1000 upvotes
Best Artist - Providing quality, Derpibooru-exclusive artwork
My Little Pony - 1992 Edition
Friendship, Art, and Magic (2020) - Took part in the 2020 Community Collab
Dream Come True! - Participated in the MLP 9th Anniversary Event
Emerald -
Happy Derpy! - For Patreon supporters
Wallet After Summer Sale -

PSA: R0 was changed!
Bug.
Celestia's Servant
Princess Luna - For supporting the site
Princess Celestia - For supporting the site
Lunar Supporter - Helped forge New Lunar Republic's freedom in the face of the Solar Empire's oppressive tyrannical regime (April Fools 2023).
Happy Derpy! - For site supporters
Bronze Supporter - Bronze Supporter
The End wasn't The End - Found a new home after the great exodus of 2012

Sanity is overrated
Squish! That! Bug!
Burza
Solar Supporter - Fought against the New Lunar Republic rebellion on the side of the Solar Deity (April Fools 2023).

IceHawk
Give the carapace a good waxing.
Cyborg_pony
Lunar Supporter - Helped forge New Lunar Republic's freedom in the face of the Solar Empire's oppressive tyrannical regime (April Fools 2023).
My Little Pony - 1992 Edition
Thread Starter - Started a thread with over 100 pages

Considering changlings are equivalent to ponies, this is really weird.