That aside, learning about english vs passive voice - and recognising it in your own writing - has been pretty important. I often find myself using passive voice in code reviews, like "maybe you should do xyz instead", but... if it's something I am certain about or feel strongly about, I should use active voice more. (note how the last sentence is still passive lol).
The phase "maybe you should do xyz instead" is active, not passive. Qualifying with maybe doesn't change it from active to passive. Passive would be something like "Maybe XYZ should be done" or "Maybe XYZ would be better".
