I agree, this isn't useless. I know my mom used to buy stick-on thought bubbles to put on pictures of her kids in baby books and such. If she wanted to do that now she's have to insert a photo into PowerPoint and add a thought bubble. I would use Photoshop which arguably would take even more time.

My suggestion for improvement: have it auto-upload to imgur or another image sharing site (maybe add a checkbox for that when people are reviewing the TOS).