... and now perhaps the most popular example is NFT Magic Ghazali Everyday who does sell photos of himself and Benjamin Ahmed with his Weird Whales work.
I'm not sure if it was true but I've also seen a post saying someone sold his nipple.
...
you will see a lot of substandard arts, which should never made it to their list.
I agree that some of the "arts" shouldn't be there and I also find the prices of sold items too high but we do not share the same view as others.
I think one of the reason Opensea became a popular destination of NFTs is the freedom it gives to creators. They will most likely choose other platforms if it becomes too restricted.