I just discovered that if you mistakenly use passive voice in your writing that word press will show you where that is. It has a feature built into it similar to spell check. With that in mind, it wouldn’t hurt for all authors to have a word press account if for no other reason than to put their writing into a new post to check it out first. They wouldn’t have to actually make the post, although if no posts were ever made I don’t know whether the account would be kept open indefinitely.
Spell check puts a red line under the word, whereas the passive voice flag puts a green line under the phrase.