I have discovered, after careful analysis, mostly of myself, a few things centering insults.
THE BEST WAY TO INSULT A PERSON IS TO STOP WRITING ABOUT HER/HIM.

Of course, this raises a few doubts, questions and throws light upon some of the disadvantages, a few mentioned below.
1. To stop writing about person you want to insult, you have to have started writing in the first place.
2. Who really cares about you having stopped writing.
3. And writing about not writing about a person is still writing about her/him.

So, You have to carefully plan your life in such a manner that you write about those you assume you will want to insult in the coming years. Then you sit your friends through your stories, write sequels and make a big deal out of them,( e.g. grumpy miles on my blog). please note- for your friends to take the stories seriously, include them. Tests have proved that most people are interested in themselves. Tests have also proved that most tests prove nothing.
The last disadvantage actually applies only to me. Since, in my knowledge I am the only one writing about not writing about a person.

So there goes. Its essential and easy to insult. Except it leaves me nowhere. I have still written.