In ancient Roman markets, what innovative method did merchants commonly use to collect customer feedback about their products?

Before digital surveys and comment cards, ancient civilizations had their own methods of gathering customer feedback in their marketplaces. This poll explores how merchants in these early commercial centers collected and responded to consumer opinions about their products. Understanding these historical approaches can provide fascinating context for modern retail customer engagement strategies.

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Wax tablets at market stalls where customers could engrave comments and ratings
Stone voting urns where customers deposited colored pebbles to indicate satisfaction levels
Designated forum speakers who collected verbal reviews and announced them publicly
Papyrus scrolls with standardized pictograms for rating product quality