So many things come in threes - Graces, Fates, wise men, musketeers, stooges and much more. I've found a rule of threes that has helped me here at Daily Kos and thought it might be handy for others.
If three explanations haven't made my point clear to someone, a fourth one rarely will.
If three exchanges have gone badly in a thread, the thread rarely improves.
If I bark my shins on someone else three different times, we are both more likely to spend our time better with others here.
On a brighter note, there are other triads!
If someone writes three good diaries, they are worth following.
If three people engage in a lively, authentic and civil exchange, others will often join in.
Have you noticed any triads in your time here? I'll update as needed.