#NSFWJS has several models to chose from, and the 90% accuracy model loses accuracy in a specific way.
Because sometimes it's better to flag things and be wrong, rather than the alternative.
These errors are "false positives" and are called "Type 1 Errors".
In some cases a type 1 error is preferred. The 90% mobilenet model might seem silly when it makes this mistake, but due to the nature of NSFW content, it's important.