I think nude.info is closer to 5k than the 1k region.
But you can't always rely on DomainScore, like all Appraisal sites, it aint perfect, always slightly off, bit dodgy. It takes search results into consideration just a bit too much, ie, a keyword with a huge amount of results, with a dodgy cctld, that isn't registered could score 500+. ie, my domain, Math.gs scored 510+ >.< (I know it wasn't the smartest thing I did.)