popularity wise

Me
You
Yoshi
Silver
Del
Drizzy
Church (especially if he actually came back to be active)

I have some more

Nar
Cinna
Bubonic
Asriel
Trap
TheHugePig
Sauce

Corpse too?

Yes
And Lavender

Wallhammer used to be so popular on MSMG, but some users currently hate on him these days.
I'm not sure if Wallhammer counts rn.
He was also awesome sauce.

Wallhammer definitely counts aswell.

Same with Akifhaziq, Bombhands, Darmug, Bazooka and ZiZi

Man, I left out Bomhands too
He's such a legend.

Fr

Oh
I left out Asriel and Cinna.

Sauce too

sauce? sauce coom?

fiery hot sauce

kinda means nothing anymore since so many users are new and dont remember the "popular" users

purely by well known i would put andrew

you

def Yoshi

Church or Drizzy

The question “who is the “biggest” Mildly Small Memer Group user?” is hard to answer, as there are varying levels of fame, and different types of fame.

AYMY or Yoshi
i'm not even close

johnathan

⁉️

AYMY, Yoshi, Drizzy, Andrew

"andrew"

but like kinda they are very well known