If one's going to follow a link to someone else's profile anyway, let it be to spread some joy in their lives. Comfort the afflicted. Befriend and aid the new. Advise the uncertain. Help some people past level, even.
Leave the insults in your hindbrain, at home, or take the day's frustrations out on your foam Wham-Itâ„¢.
(Edit: fortunately, most people who this applies to are no longer on my list if they ever were, and probably will never read this.)