5. Lend a helping hand. A bit of compassion can go a long way toward helping people with life's challenges and reaching out can help alleviate feelings of loneliness. We're all different, but we're really all the same. At sometime or another, we all need or want help or simply someone with whom we can share our burdens or successes.
Making supportive comments or posting your own personal opinion is one thing but being rude because you choose to will not be tolerated. We are not here to judge. If you do not care for someone's post then just don't answer it.
Finally this is the real world, there is no such thing as all or never when giving advice in a polite manner.