This results in unnecessary confusion and annoyance on the part of the reader.
Readers find wordy papers difficult to follow.
Wordiness is a result of idea generation. Most people write wordy sentences and paragraphs when they are writing early drafts. In final drafts, however, writers need to trim those wordy passages. Many people write wordy papers because they are trying to make their ideas sound important by using long words and intricate sentences. They think that their writing must be complicated to seem professional.