In JL, WW states that the reason her rogue's gallery is unknown is because she "handles" her villains. When Superman questions the challenge of proving the villains guilty, Diana said she need not worry about that with the lasso of truth.

When Superman asked if by "handle" she meant kill, the discussion was interrupted.

Is WW killing her villains?

I think she avoids killing if she has to, but isn't afraid to.

This was depicted in JL where she fights non god villains, and this is implied to be why she doesn't have strong name recognition from her rogues.

Would new 52 WW just say this to impress Superman or to support her self bad ass-ness?