I haven't really reviewed what I'm posting here - heck I can't spellcheck at 12:30 in the morning:
Amazon, through its "Brand Registry" allows anyone with an issued trademark to take over other brands, whether or not the brand is covered by the specific goods that the trademark was issued for.
Brand Name Hijacking takes advantage of several bugs in Amazon's seller business model:
1) Amazon Brand Name Registry allows the owner of a USPTO trademark to take over listings of non-trademarked brands.
2) Amazon Brand Name Registry does not prevent a registered Amazon brand from over-reaching beyond the regulated goods and services associated with that trademark.
3) Amazon combines reviews of different item variations and colors, even though they are from completely different listings and manufacturers.
4) Amazon debits inventory even when an order is cancelled, allowing a denial of service attack to exhaust inventory in a seller's listing, at no cost to the attacker.
Effects of Brand Hijacking:
1) Shoddy or unproven products receive five-star reviews, apparently from several years.
2) Consumers, relying on Amazon star ratings, are grossly misled by the summary reviews.
3) Disreputable sellers are rewarded (at the cost of honest sellers) by large volume sales caused by high ratings.
4) Unscrupulous sellers of reviews receive money from Amazon sellers in return for inflated reviews.
5) Independent sellers on Amazon -- specifically those who have delivered extremely high customer satisfaction -- are locked out of their listings and pushed out of their long term business.