Among the various kinds of romance scams found in the Federal Trade Commission’s database of Tinder complaints, one man ventured to fight back in the name of the app’s thirstiest men.

If you live in Boston, you might have had a knock on your door, and then opened it to see one or two individuals, each with an official-looking ID on a lanyard, who will immediately launch into their script - they’re “with” your energy company, and would like to offer you an opportunity to sign up for a fixed rate. And while they aren’t exactly door-to-door scammers, that rate they sign you up for may end up costing you far more than you currently pay. A request submitted to the Department of Public Utilities shows that the number of complaints filed against these companies has drastically increased over the past eight years.