it means that once it's been reported, it is extremely unwise to just "let it go". Now that the employer known that sexual harrasment took place, if they do not

it means that once it's been reported, it is extremely unwise to just "let it go". Now that the employer known that sexual harrasment took place, if they do nothing about it then they will be HUGELY liable if something worse happens later on (which seems likely, seeing as this guy did this as a relatively new hire). Additionally, you generally don't want ass-hats that do this kind of shit working for your company, when the other party has made if obvious the advances are unwanted (we can only go off what OP has said though) working for your company. Especially if its small.