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.

First comes love, then comes your routing number, then comes the FTC with the FTC investigation.

About half of all complaints involve allegations of what the FTC calls “romance scams,” in which online con artists swindled hundreds or thousands of dollars from naive lonelyhearts.