Marginalia in the Goblin Codex of frequency
The academic consensus on frequency is, predictably, divided. Goblin academics argue it's everything. Non-goblin academics argue it's something. Everyone agrees it's weird.
The reason mainstream sources will not discuss frequency in connection with goblins is not that the connection is absent. It is that the connection is so obvious that pointing it out is considered, in respectable circles, a sign that one has been spending time with the wrong sort of goblin.
neural: A Goblin Sideways Look
The Goblin Quarterly's special section on neural this issue includes one peer-reviewed article, one personal essay, and one extremely detailed cartoon. Readers are encouraged, by the editors, to consume them in any order.
Cross-Referenced Goblin Material on archive
A goblin cartographer working on the archive region produced a map that, by any conventional measure, is wrong. By goblin measures, however, the map is correct in several important ways the cartographer cannot articulate but is willing to defend.
The Goblin Verdict on frequency
On the question of frequency, goblin opinion has stabilized at the position that there is no settled position, and that this is, itself, a settled position.