Negril is not really a very good representation of Jamaican men overall especially on the beach and in clubs/bars. So in those areas I wouldn't say that information is inaccurate and I definitely wouldn't say that the majority of men you encounter there are the same as everywhere. Foreign women should definitely expect a lot of male attention and a persistence that they may not be used to. Subtle polite hints that you are not interested often aren't taken and just being friendly can lead to unwanted advances sometimes. I've seen it too many times over the years and I've also seen a lot of hearts broken to go along with some good stories. This is coming from someone who has Jamaican brother in laws, nephews, and long time friends who I'd vouch for in a heart beat but they'd say the same thing. That being said, it's like that in Negril because a lot of foreign women come down for that exact reason to hook up. So if you're not interested in a romantic experience with an individual who approaches you then make that bluntly clear because a lot of women are there for that and it's easy to be mistaken as one when flying solo. In my opinion Negril is perfectly safe for a solo female traveler who exercises the same amount of caution they would traveling to any big city in the US when alone especially if you have a trusted driver/guide. Just my two cents.