This is taking me into serious rant territory.

if (1) This is a scam to generate fake reviews on Amazon, (2) the seeds were sent to me , and (3) a fake review appeared in my name, then I would be demanding that Amazon 'writes' to everyone who has read the review to inform them that it is a fake review, and if EVERY person who has read the review cannot be identified, then I would expect Amazon to write to every household in the world.

Multiply that by potentially thousands of fake reviews, that could cost Amazon a trillion or so. Costly, yes, but it would be in Amazon's interest to verify every review as genuine before it is published.