OkCupid's stance on unwanted sexual advances
This is often gender-based abuse and can take the form of highly sexualised language or persistent and unsolicited messages, often of a sexual nature. The sender will have complete disregard for whether or not the person on the receiving end wants to receive these advances.
OkCupid does not allow unwanted sexually explicit messages. This includes descriptions of sexual acts/ kinks/ fetishes, sexualized comments about people's photos, etc. Even if someone says they are open to hookups on their profile, it does not mean they want sexually explicit messages.
OkCupid does not allow sexually explicit photos or nudity. This can be considered to be sexual harassment and will ban any offenders that are reported.