npub1khwhnlvm5x6ftf0sx8frrqjs078dfnwv2kleuw43wmct9mk7s8zq8prwdf (npub1khw…rwdf) Misskey is a predominantly Japanese artist instance. Most of 'em don't speak English, and so are probably unaware of what instances should be blocked outright.
The main driving force of Misskey's growth is that JP artists kept getting banned from Twitter over loli illustrations, so they migrated here.