It's hard to distinguish real negative reviews between fake ones. You would be surprised how many people post fake reviews on accounts to trash someones sales. Especially when you post a negative review without and proof, hard to verify it.
From the section rules thread:
None of your posts provided any proof, so they were deleted.For complaints aka negative reviews (e.g. bad service) please provide meaningful, professional, and noninflammatory remarks with proof. Otherwise, your post will be deleted.