Home sellers just love to get feedback from the agents who showed their homes but it doesn't always happen. I don't always get feedback from the agents who showed my listings and I don't always give feedback when I show a home to a buyer.
When I show a home to a buyer I am generally representing the buyer. I do not have a contract with the seller or really any obligation to the seller other than to turn off the lights and lock the doors when I am done. When I do provide feedback to the seller I will never say anything that will weaken my buyers position. I will never comment on the price.
When I represent home sellers I never guarantee the seller that there will be feedback from each showing. I instead tell the sellers that I have a system for collecting feedback and I follow through and ask agents for it but I can not guarantee that I will get it.
Sellers need to understand that if buyers love the house and want to buy it or are thinking of buying it the agent will generally give feedback or contact your agent and chat. No news is rarely good news.