Any adult may join the site and all users may communicate with others via private messages or an instant messaging "chat" function.
Ok Cupid was the first major dating site to offer unlimited messaging free of charge.
The website added a bevy of nontraditional profile options for users to express their gender identity and sexuality in late 2014.
These options—which included asexual, genderfluid, pansexual, sapiosexual, and transgender categories—were added to make the website more inclusive.
if you use the Internet, you're the subject of hundreds of experiments at any given time, on every site.