Sexpot is not negative in my mind; however, bounder definitely is (and not especially sexual in any case), not to mention player and others. Also, it's a matter of perception; various of the male terms marked positive are clearly negative in my mind, because I have rejected that style of sexual interaction. Plus, there are some inconsistencies - e.g. the Wikipedia articles on both Casanova and Don Juan start by using the term "womaniser" for them, which this list has as negative.