Milk has always taken credit for Simcha's work on Deer and the two eventually had a big falling out. I think Simcha only ever took over the game out of obligation and eventually got sick of Milk and all the players thinking of it as Milk's game.

I also checked out of curiosity and it looks like Rona is still on Simcha's friends list, but not Milk's. I'm sure some people have legitimate grievances with her (I sure do) but it's awfully convenient for Milk that every time she starts catching heat someone rushes in to pivot the thread to blaming Simcha's decision to quit on Rona.