> Amazon has promised individual sellers it would not use the data for their products to market against them (not individual buyers). Again, there's that word.

> Amazon has promised individual sellers it would not use the data for their products to market against them (not individual buyers). Again, there's that word. Individual. They get off on a technicality with that comment to congress. The second you have even 0.05% (Your example, not mine.) of any category occupied by a second reseller, you're no longer targeting individuals -- you're entering a 'product vertical'. Amazon does exactly what you're claiming they do not.