There are some existing recipes, however - you as a user aren't restricted by those recipes. You're free to create any recipe with almost any API supported by IFTTT as long as there are valid trigger points.
It seemed a bit weird and was completely unexpected, so I probably wouldn't rely too much on it initially, until you have used it for a while.
From what you're saying, you did it as a service to me, the user, and not to yourselves to save resources, which is what the e-mail notification sounds like - which annoyed me a bit, I have to admit.
I'll give it a second shot and send you an e-mail when or if it happens again. :)