childfree vs dogfree...let them fight 
neoliberal
Margaret Thatcher: "there is no such thing as society, there are only individuals and families"
/r/DogFree:
"It's so wholesome to see a family without a pet dog...The whole family is talking with each other and, well, being a family.
The ideal family doesn't need a dog. A dog is a living parasite of a burden.
I notice family units are usually stronger when they don't have a dog.
That’s what it looks like at my house. Peace, quiet, chatting with each other. We can come and go in and out of the house without a "shadow"
Without a shadow? new type of vampire ghoul just dropped
Why would it be?
I have a dislike of dogs driven by fear personally, and prefer to not be in the vicinity of the ones large enough to do serious harm if I got attacked. Thus, you have a bunch of people with even stronger fixations and a misanthropic view coming together and creating a subreddit or other community.
From this, say a strong fear of walking by fences where you know dogs are, charging at you from behind the fence and barking at loud volumes, you have a self-strengthening echo-chamber with some added reddit-brand smugness to it.
"I don't like/fear dogs/other phobia commonly faced in the wild" can for example turn to "I hate people who are likely to own a dog" or whatever. Or it could not and stay as pointless and bizarre posting like this.
Never doubt reddit I guess.