When we first log in, GMs review the notes that have been left since the last time they logged out, thereby getting up to date on the goings on. We skip notes that involve our own characters, which we do by seeing the subject or the players the note relates to.
So, below, are the top noters of all time. Keep in mind, these are ALL TIME numbers and some of the names here are of people who are no longer really GMs but coders or builders. So some of them are pretty impressive since they come from some of our newer GMs...
Slither: 2564 (10+ yearsl)
Linekin: 1908 (3.5 years)
Cerberus: 1728 (3.3 years)
Radiance: 387 (Less than a year!)
Butako: 272 (Less than a year!)
Mench: 129 (Less 6 months!)