I used to post pictures of what I thought about some of these troll threads and have received infractions for a picture of animal poop and a picture of someone who may or may not have hung himself to death, but not for afterbirth related pictures. The moderators must be into this new eating your own placenta fad.
I've also received warnings/infractions for being too explicit at times (i.e. telling someone to suck something). Some of them were more or less identical to much of the stuff on here lately. I'd chalk that up to stuff falling through the moderating cracks and not to them playing favorites or being more lenient. My point is that just because this stuff goes without moderator action does not mean it's acceptable.
You should have a hard time earning infractions here if you keep yourself to the realGM standards. I'd be surprised if you think you're more lenient moderating over there... at least the staff as a whole.