The oldest appropriate form, beating out Glossarian by 507 years, Glossarist by 394 years, and Glosser by 223 years.
We who compile the Unlikely Glossary are Unlikely Glossators; more specifically:
Nick—to blame for the whole hinky business
Andrew and Chris and Kevin—Able co-conspirators

Andrew objects to the term on the grounds that it “looks and sounds stupid,” which is true enough, though it is unclear how this is a bad thing, given our predilections, and equally unclear how his preferred form, “glosseteer”, does not also look and sound stupid.
From Kevin Sun May 9 22:22:59 +0200 2004
From: Kevin
Date: Sun, 09 May 2004 22:22:59 +0200
Subject: Glossators looks stupid
Message-ID: <>
Yeah. It reminds me of the Glossateers. Britney, JT and Christina style. —Kevin
From kukkurovaca Sun May 23 12:12:06 +0200 2004
From: kukkurovaca
Date: Sun, 23 May 2004 12:12:06 +0200
Message-ID: <>
So, wait, you object to both of the existing candidates?
From unknown Sun Jun 13 15:45:20 +0200 2004
Date: Sun, 13 Jun 2004 15:45:20 +0200
Message-ID: <>
I object to both! Glosseteer sounds too much like a muskateer/mouseketeer/rocketeer, and glossator sounds like someone who dodges plastic bulls or wanders around 13th-century England singing. Then again, maybe I overly associate words that rhyme because I don’t read their insides.