When you try to order a whisky on the market you may receive the error message "Your buyers rating is too low" and you can't place the order.
This mostly happens with new users on the market, as they don't have a buyers rating yet.
You get this error when a seller has placed a restriction on the buyers rating, and only sells to buyers with a minimum rating of the amount he configured.
In order to buy from these sellers you need to build up an excellent buyers reputation. Most sellers doesn't have such a restriction so you need to start buying from them and make sure the transaction goes smoothly so you earn positive ratings.