Considering people are buying and selling LoacalBitcoin accounts, I wouldn't trust any rating system there. I don't know the site well but I am sure some are cheating the system, with making sell with their friends, their multi accounts or any other shit ideas they can find.
Or he may be in hurry and can't wait to deposit a bank transfer to an exchange. Or maybe he is using a stolen card in the app?
Appreciate the feedback, thanks.