nope, its also called keyword spamming - it increases the likelihood that the item will be viewed. report them to ebay for yeword spamming and it should come down pretty quick.
No they are not. Definitely report them. It's located on the very bottom of the page.
If you can't find it here's the link for your first link. Follow through the prompts and eBay will take down the listing. It helps keep eBay safe from fake goods.