Let me give an instance. A friend came to me to tell me about something. I gave her the best idea I could ever give to a friend. Most times, the advice we get may be bitter but helpful which is the truth.
She insulted me badly and I felt bad. This is why it is good to know the kind of people that you will give advice to
I think it's best to keep the advice to oneself and help guide the person to their own outcomes instead.