Parallel ideas should be expressed in parallel form. Balanced ideas are best expressed in balanced sentences. Punctuation marks clarify the message in the written sentence. Word use should be economical. Words have emotional appeal.
Large vocabularies help express ideas more accurately and efficiently.
Language users have different oral and written vocabularies. Larger vocabularies make it easier to communicate. English words spoken by different people from different walks of life in different times have made the language rich and varied. Age and geography are factors in vocabulary development. The pronunciation of words is an indication of regional dialect and first language influences.