The Cost of Miscommunication
This language can lead to miscommunication. And, this misinterpretation of language can be costly in a number of ways. Two. It can make you, or your company, responsible.
Using language can crush the rapport you have worked so difficult to build with patrons or colleagues.
For instance, the reader may become irritated, worsened, or crazy. It is a natural human reaction to become defensive when you run into something that you don't get. The reader could also think you are attempting to be pompous, or that you are attempting to show off.
At the least, the reader will become annoyed. The person may, or may not, trouble to ask you to "translate.". As an example, let's imagine you are providing monetary info to a buyer, and he / she misunderstands that info. If the buyer makes a call based primarily on the miscommunication, it might lead to expensive mistakes.
The "cost" to the client could be financial. The "cost" to you could be a loss of credibility. Why take the risk? Don't put yourself or your buyer in a dodgy situation.

