You're going to hate this post
I'm astounded at how quickly all of you have imputed malicious intent to the person who bought the bolts. Not everyone is on the forums. You can't assume that everyone knows that wheat 1 means a trade is in progress. On the other hand ...
Here are the Supercell rules of the game: if you put something in the RSS, it's for sale, first come first serve. Supercell did not program in-game private trading. So you enter into an outside-the-game agreement, you proceed at your own risk, and assume all risks.
Risks include a new player or a non-forum player inadvertently buying the items. Risks also include a $&@k realizing there is a pending trade and coming in for the kill.
Games of all kinds involve risks, winners, and losers. When you take a risk, you can get burned. This is the nature of life, also. Don't waste your time looking for someone to blame or someone to kiss it and make it all better. Play or don't play. Your choice, in Hay Day as well as adult life.