Certain types of punctuation that should not typically be used in formal or professional writing are the following..
Too many dashes or hyphens,( they tend to confuse the reader)
Too many commas, ( they make your writing choppy and confusing)
Unnecessary quotes,( they especially are not food when you pick one that is not pertaining to the topic)
Also, Ampersands( also known as symbols,or emoji's, except in writing, very un-professional, as well as confusing for the reader). Hope this helped! Have a good day!