You can reply to comments and ask for clarification.
The itch.io community isn't here to beta test your game, so asking us to fill in extra forms etc, is a big ask. If someone does leave meaningful feedback, well the planets lined up for you that day - that's all.
As for the build, that's your job. You should be able to tell which build they played based on the when they left the comment and if you're releasing so many builds that you can't tell, you should probably spend more time testing or polishing your own game before releasing it.
If you receive a comment that the tutorial is confusing: Imagine that you know nothing of the game and you must play it based on the tutorial instructions alone. How far would you get?