I agree with the principle that you should tell the user what matters, but theres a tension between that and making it too long.
Every word is an opportunity for the reader to stop reading. Once they get a sense you're droning on, they'll stop.
To take the first example the author says needs fixing:
Added “duplicate” button to the event menu.
I think a better fix than the one in the article is: Create events 10x faster
When you create a new event, first you copy/paste text from another event. This is slow, so we built added a "duplicate" button, You can find it in Options > Duplicate.
```For reference here's the one from the article:
Use “Duplicate” to create events 10x faster
When you create a new event, chances are that the first thing you do is copy/paste information from an existing event. Creating events this way is tedious and slow, so we’re sparing you this toil with the new Duplicate feature.
When you need to create a new event based on an existing event, go to the existing event, and select Options > Duplicate. Duplicating events is 10 times faster than copy/pasting fields.