To show mercy

I know that people who give naseehah to you are those who love you to improve yourself and be better.
But at times, when you fall or when you mistakes, you would like people to understand you and just comforting you.
Maybe just give mercy to you
Because people don't know what you've been through

Maybe sometimes you should overlook other people mistakes
Sometimes they are mad when they are emotional 
Maybe they really hurt at that time
who knows why or whats up in their nights with Allah
maybe they cry for the things that hurt them

and maybe sometimes when you hurt you tends to be mad
tends to speak out why would some people hurt other people
tell lies to other people

maybe at that time the best support that you can give to the person is not naseehah or to point out their mistakes and tell what should they do instead
maybe at that time the best support is to show mercy

To show mercy to them
they are also humans
they can't be all the time emotionally perfect and rational
they also need mercy
something that could hurt them possibly don't hurt you
because they experience difference challenges in life
Allah put them in the challenges because Allah knew they can handle them
if Allah put you into their challenges maybe you cant handle them

so sometimes instead of giving naseehah which is a very good thing
but depends on the time
at times people just need mercy
and kindness

just show mercy and understanding that they are human too
they express their emotions too