Rafflesia arnoldii is the first user with two gold great question badges on meta.

In mathematics the art of asking questions is more valuable than solving problems. (Georg Cantor.)

Strictly speaking, neither of the two were questions, they were proposals. :)

Imagine that Math.SE had the same requirements for moderator nomination as Stack Overflow: 3000 rep and the badges Deputy, Civic Duty, Strunk&White, Convention. Who would be eligible to run then?

There are 48 users meeting these requirements. Of them 7 are no longer active, and 3 are current moderators. This leaves 38.

It was mentioned on meta today that the date of new elections is already being discussed.