I believe it's against team rules to post things like this when you're calling someone specific out, which you've done by including a listing that's not your own, and you've likely not had consent to.
Having said that, there's no real reason to do it. It doesn't affect searches, and it doesn't make people look clever. It makes it difficult to read the titles. It's bad enough that people do it on facebook on their statuses - I don't need it here as well! :P There should be some sort of filter or something. But I'd rather they worked on giving us set-amount coupons for gift vouchers than work on this :P