I wouldn't worry about it. The site is actually a huge forum community that has forums ranging from every topic imaginable from animals to food to video games etc.There is a DIY & Hobbies subforum there, and I glanced through the Knit/Crochet thread but I didn't see anything posted there so I don't think it was anyone asking how to make your item.
But it could be posted anywhere on the forums really, there is no way to find out. There is a huge secret santa thread too, so if someone bought something off you to send to someone else, they could be linking what it is they got or where they got it from.