Wikipedia gives Rain eight titles and So Ji-sub none

English Wikipedia holds eight different titles that will land you on the page about the singer Rain. Five of them are the same word with a different bracket after it: Rain (entertainer), Rain (singer), Rain (actor), Rain (soldier), Rain (celebrity).

It holds six titles for So Ji-sub. Not one of them has a bracket.

We took the 100 most-read Korean stars we hold, asked Wikipedia’s API for every redirect pointing at each person’s article, and counted the titles that exist to tell that person apart from someone else. The split is not between famous and obscure. It is between a name that is one word and a name that is not.

Sixty-four of the 80 full names have no bracketed title whatsoever. Eighteen of the 20 one-word names have at least one.

It is not that they are more famous

The obvious objection is that these are the biggest names, and big names attract editors who make redirects. We tested it and it does not hold.

Split the hundred into four equal groups by total reads. The full-name median is zero in every group — at 330,000 reads and at 7.5 million alike. The one-word median climbs with reads, from 1 in the smallest group to 7 in the largest, but it starts above zero and stays there.

Reads and total title count correlate at 0.248 by rank across all 100 — weak. Fame adds brackets only to names that were going to collect them anyway.

What a bracket is actually counting

A bracket is what an encyclopedia writes when a title is already taken. Rain is weather. V is a letter. Jin, Jennie, Danielle, Karina, Felix and Rose are ordinary given names in English. So the encyclopedia has to say which Rain, and it has said it eight different ways over the years, keeping every old attempt alive as a redirect.

Lee Min-ho collides with nobody. Neither does So Ji-sub, Kim Go-eun or Bae Suzy. A three-syllable Korean name written out in full is, in English, a nearly unique string.

The two one-word names in our hundred with zero brackets make the same point from the other side. Ejae has 3.92 million reads — more than Rain, more than Psy, more than Jimin — and needs no bracket, because no one else in the encyclopedia is called Ejae. Yeonjun has 376,559 and needs none either. A one-word name only collects brackets if the word already belongs to someone.

The Korean spelling is there, and almost nobody uses it

While counting titles we found a second thing worth reporting on its own.

Seventy-two of the hundred have a Hangul redirect — So Ji-sub (소지섭) and IU (아이유) can each be reached by typing the Korean form into the search box. Somebody made each one deliberately. Across the whole set they drew 14,254 reads out of 232,311,005, which is 0.006%, or about one read in sixteen thousand.

The doorway in Korean script exists for nearly three-quarters of these people, and on the English encyclopedia it is essentially never used. That is not a failure of anything. It is a measurement of who English Wikipedia is read by.

What this cannot say

It cannot say when any redirect was made. The API returns what exists today, so nothing here is a claim about which spelling came first or how the pile grew.

It cannot say whether a bracket is correct. Wikipedia decides that by its own rules, and several of these people have been moved between brackets more than once — IU (singer) to IU (entertainer) is one, and readers did not follow that move either.

And it is a count of collisions, not of standing. Jimin’s eleven brackets and Ejae’s zero say nothing about either of them. They say that one name was already in use in English and the other was not.

The seven-member table this line of counting started from is on the page behind it.