There are different methods when…

There are different methods when people deal with sinners: Mudaahanah (flattery) or Mudaaraah (gentleness). The first is for Nafsani needs (for e.g., the lower ego trying to get an advantage from this sinning person by telling him that no, the action done is not a sin at all), the latter for Deeni objectives (i.e. being gentle until the truth can be brought out to the currently sinning person).