If you've ever had to slug through the quagmire that is online dating, you'll know that swiping left and right can become extremely tiresome.
So tiresome that you sometimes accidentally swipe right on someone you had no intentions of "liking." When that happens, as annoying as it is, it isn't that bad. Even if you match with them, you could always ignore them if they message you. Sure you'll destroy their self confidence, but there are ways around that, like pretending you're a bot.
Even worse, however, is when you accidentally swipe left on the potential man or woman of your dreams.