I am a gay man and have used Manhunt for years. Yes, there are sexually explicit ads. But, you have to register in order to see them. It is whatever you want it to be. I've made some lasting (non sexual) friendships as well as found hot men to date. I use it because I WANT to see and leave adult content. it's one of the better man 4 man sites on the net. I highly recommend it if you are a man looking to connect with another man.
If you are offended by gay hook-up sites, male nudity then you don't have to register.
manhunt.net/ is currently categorized by K9 Web Protection as:
Adult / Mature Content
Sites that contain material of adult nature that does not necessarily contain excessive violence, sexual content, or nudity. These sites include very profane or vulgar content and sites that are not appropriate for children.
It's one of the leading gay social network sites. The company commits to user's privacies (blocks users from right clicking to save photos to deter identity theft or impersonators), offers report functions to below age users, freezes or bans inappropriate profiles such as discriminatory comments. But lately there are numerous bogus phishing emails attacks to its users.