API/DEPR: DataFrame/Series.replace is too complex.
in https://github.com/pandas-dev/pandas/issues/17673#issue-260396559 @jorisvandenbossche wrote

>Underlying reason is that this function of course can do way too many things at the same time (or the same things in too many different ways) ... (orthogonal to this, we could maybe also think if certain functionality could be moved into its own function).

opened this issue to discuss.