There is one video that used to be a PH that I swear was borderline rape that I came to hard and often when I was in highschool. I think it was in the painal category and one of the top videos at the time, I couldn't find it last time I looked.
Pretty sure that wipe was just an excuse to get rid of competition and not a desire to actually remove "harmful" content from their site but it's sad to see it go.
Credit cards are a borderline duopoly, mastercard and visa, fake competition, in the last decade and so the credit card companies have been on a open moral crusade, anime(often not even hentai) and porn being the biggest targets, the credit card companies threatens sites(pornhub being best example of this) and distributors(we talk semi big Japanese companies on the anime side, or big in the otaku world) wont be allowed to processes payments thru said credit card companies.
The argument from the credit card companies, is morally wrong to allow such media (anime and porn) to even exist let alone being monetized, in fact this kind threats often come after non-conclusive reports that says there MIGHT(emphasis on might) be unlawful content on the site, and accusation of poor moderation(pornhub is to big of a site to not get rid of actual unlawful content).
So pornhub end up having to being forced to only allow verified content to stay, more or less just trailers from big studios. actual amateur content is removed, even if it is legal(some couples just like to make vids, not really in it for the money)
On the anime side of things this is even dumber, big distributors that distribute a little bit of everything get shut out of the biggest payment services in the world, even if said distuborts have some halfway ecchi stuff it is considered bad enough to just shut them out, not even give a chance to split up and form a separate company to distribute that sort of content allowing the biggest part of the catalog still be up for sale under the original name.
The anime side is saved by the fact there is actual japanes credit card companies, as such japanes distributors can still operate, but now whitout a global costumer base and only the local Japanese one, foreign otakus are big money believe it or not(true otakus not the newfag kind that call parts of otaku culture problematic)