Is Buy and Forget a Myth?

Liked this thread. Mainly because whenever i buy a stock i do it with an intention to hold it for very long term ( except a few of course ).
In my experience, most imp things for success in such strategy are

1. Be a loner. Avoid discussing ur stocks everywhere. Cut all noise. Any negative news just evaluate against ur original thesis.
2. Management integrity is most imp in buy n forget strategy.
   3.Think any risks, possible disruptors to business. Do u think the company will survive next 10 yrs ?
   4.usually predictibility is more in mature businesses where growth may not be stupendous.