The significance of characters having initial D in their name in One Piece

Question

At the first, I think, initial D is the fabulous initial. Until now, all of D are the strongest people in One Piece, and that been proven.

According to me, whose people have initial D is the good man. But why Marshall D. Teach is the bad man?

Answer 1

Elaborating a bit on the will of D. In short all people born with the middle initial of D have the power to greatly influence or change the current course of history. No person with the name "D." has ever been just a normal person they are the people you see in the news headlines traveling the world and wrecking s***.

Ace, Luffy, Blackbeard, Dragon, Trafalager Law and Gol D. Rodgers all bear this name and are all major characters in the series.

Now determining who is a a "good guy" and who is a "bad guy" is not based off of having the name. It only means that these characters are major and significant or will become major and significant later.

There is some speculation as to the will of D relating to the poneglyphs and the tenryubito in the holy land and whatnot but no cannon plot has focused on that yet. My suggestion is to just stay tuned...

Answer 2

We don't truely know what the Will of D is or what D stands for. While most are considered good guys right now, the name now is not inherently good or bad.

You are correct that only one character both has a middle initial D and is an antagonist right now. Marshall D. Teach, however, is not really a true D according to Whitebeard.

"You're not one of them... the men that Roger waits for... are a very rare few... but not you, Teach. You are not one of them. Those who carry the will of Roger... and now have also come to carry the will of the late Ace... even though the bloodline has been extinguished their flame has yet to disappear." - Whitebeard's dying words...

There is more but typing it here doesn't do it justice.