He is not saying much about your actual conversion rate. He is saying more that you don't have enough data to make the claim in the title. For example, imagine

He is not saying much about your actual conversion rate. He is saying more that you don't have enough data to make the claim in the title. For example, imagine if your conversion rate was 0. Then one day you got a few sales. If someone made a post claiming 10,000+% increase in ROI, we'd be pretty appalled.