Keyword spamming happens when members put brand names or other inappropriate keywords in a title or description for the purpose of gaining attention or driving members to a listing. Searchable text sellers put in their listings must be directly related to the item being sold.
Kris wants to sell a backpack on eBay. It is not a brand name backpack so he is concerned that no one will find his listing. Because of this, he decides to compare his backpack to a more popular brand name backpack that looks similar to the one he has. He lists it with the title "Blue-Grey backpack similar to Adidas!" Is this a good title to use?