1. The merchant did not provide price information: the merchant may not provide detailed price information in the public comment, or may not be willing to disclose the price. This may be because the price of merchants will change according to the season, promotional activities and other factors, and they may want to communicate the price directly with customers through other channels.
2. Dynamic pricing: Some businesses may adopt a dynamic pricing strategy to adjust the price of products or services according to market demand and supply. In this case, it may be difficult for merchants to provide accurate price information on public comments, because prices will change constantly.
3. Regional restrictions: The price display of public comments may be subject to regional restrictions. Merchants in some areas may not be allowed to publish prices on public comments, or the public comment platform has not covered this area, so it is impossible to display price information.