As per this post, Pixiv is now filtering out images based on one's listed country. What this means is that things like loli and /ss/ are mostly blocked for most places, and I am sure that R-18 stuff is completed blocked in countries like South Korea and Iceland (where porn is technically illegal). I am sure that those concerned about the ability of drawings to consent will be pleased while the rest of us will need to set our locations to Japan in order to use the site as before. Keep in mind that this will hamper our ability to see quite a bit of fanart due to stuff about how certain characters (like most in Pokémon) are technically minors.
As an aside, those whinging about lewds of characters under 18 25 and go on about characters being "minor-coded" sound so much like the moral guardians of the 90s and 00s crying about violent video games. It feels as if that ilk just repackages arguments from Jack Thompson when they screech about said lewds.