I'm a native English speaker and I find the use of colloquialisms, abbreviations, and the like frustrating as well. There is no good reason to not take care in

I'm a native English speaker and I find the use of colloquialisms, abbreviations, and the like frustrating as well. There is no good reason to not take care in the choice of words when communicating in a professional setting, regardless of the language used or the native language(s) audience receiving the communication.