To be fair, I think there's an issue with the obfuscation / blurring on a lot of the NSFW posts, i.e. people are tagging their post as adult only, but the thumbnail still shows "in all it's glory", I'll add an example below (don't worry, I'll still obfuscate):
Obfuscation not working properly (SFW)
I also feel like the blur isn't aggressive enough for some posts I've seen; I'd prefer something less... subtle... Sync for Reddit would just straight up show you a red box as the preview unless you went into the post.