Table 1.

Examples of excluded posts because of idiomatic language or reference to animals.

Idiom or forum name			Description		Threads deleted, n (%)			Example text from excluded threads
Idiom
	(1) Raise an eyebrowa; (2) raise an eye brow; (3) raise eyebrows	This idiom is used to convey awe, consternation, or disbelief.		(1) 51 (100); (2) 2 (100); (3) 18 (64)			“I may be just freaking out but it does raise an eyebrow.”
	(1) Bat an eyelid; (2) bat an eye lid	This idiom is used to show an emotional reaction.		(1) 20 (100); (2) 1 (100)			“And the doctor, like me, has seen so many she’s not going to bat an eyelid!”
Forum
	Animal Health—General	This forum is used to answer questions related to general pet health (treatment, parasites, infectious disease, etc).		56 (100)			“My 3 year old boxer has one eye that seems to droop and is a little redder than normal. [...] It has always been that way it could be a congenital abnormality such as entropion.”
	Animal Lovers Group	This forum was previously used to chat about anything related to pets and animals.		1 (100)			“Birds are wonderful. In this state, they seem to frown on folks feeding them in the park too, it really irritates me, what would our world be like without those lovely creatures singing their happy song to us, I love them.”
	Animal-Surgery	This forum was previously used to have questions answered by a veterinarian from PetDocsOnCall on all questions regarding animal surgery.		2 (100)			“My dog has ingrown eyelashes”
	Birds	This forum was used to answer questions about pet birds.b		5 (100)			“My three year old peacock has cloudy eyes. One eye in particular, the lid seems to linger and appears to bulge (slightly) when looking at him straight.”
	Cats	This forum was used to answer questions about pet cats.b		113 (100)			“I don’t know what my cat has got into but his left eye has been watering really bad and is red inside. It is now red on the right eye but just around where the lashes would be.”
	Dogs	This forum was used to answer questions about pet dogs.b		153 (100)			“Lumps on dogs eye lid”

^aWords referring to ophthalmology are italicized.

^bThese forums used to have questions answered by a veterinarian.