But there's a type of dating site scam that's far trickier to spot, and the people who operate it claim to be making thousands of dollars every month fooling vulnerable men.
Business Insider obtained a PDF guide that is sold online for just £2.59.
Dating sites are, thankfully, getting better at spotting who is using their service to send thousands of spam messages.
It's pretty easy to tell: They send the same message over and over, often with the same link.
Just read the following list of funny nicknames and try it in the most popular phrase of online gaming: “… Kiss-my-Axe, Chief-Choke-a-ho, About_30_ninjas, Toastoftheundead, Yourself_Crab, Gigantic_Wang, Brosef_Stalin Game_over are among most funny ones.