Why is it important to use plain language in business writing, especially when writing to non-native English speakers?

What will be an ideal response?

An important aspect of creating a conversational tone is using plain language (or plain English specifically when English is involved). Plain language presents information in a simple, unadorned style that allows your audience to easily grasp your meaning—language that recipients "can read, understand and act upon the first time they read it." This definition supports using the "you" attitude and shows respect for your audience. In addition, plain language can make companies more productive and more profitable because people spend less time trying to figure out messages that are confusing or aren't written to meet their needs. Finally, plain language helps nonnative speakers read your messages.