Over last weekend I noticed a drop in my overall rating and looked and saw someone gave me a 1 star. No biggie, My rating is very high so I am not sweating it at all. Knew it had to happen some day. I was expecting a rider complaint to show up at the same time or shortly thereafter. It's now been 5 days and nothing showed up. My question is I thought if someone gave you a 1 star they had to provide some feedback/reason for the rating. Can someone just rate you 1 star without any comment or complaint when they do it?