Definitely, as the title suggests that Properties and Fields are separate things.
I would extend this with “memory backing” aspect to: “In Kotlin, field is only used when needed as a part of a property to hold property value in memory. Fields can not be declared directly.”
For the sake of smaller edits, how about this change:
In Kotlin, field is only used when needed as a part of a property to hold a property value in memory. Fields can not be declared directly.
An “a” was added before the 16th word. Single character-beat that! 
In Kotlin, a field is only used when needed as a part of a property to hold a property value in memory. Fields can not be declared directly
Technically two characters are changed since you removed the trailing punctuation 
I added the punctuation back. Smallest change so far
Lol nice. Here’s one smaller. I italicized the “b” in “be declared”, no characters added/removed!
In Kotlin, a field is only used when needed as a part of a property to hold a property value in memory. Fields can not be declared directly.
Can a mod split this topic? Either at the post right after the 2 year jump or at my post from a day ago?
I created a PR to apply the changes we discussed here:
@yvolk since you started this discussion again I would like you to take a look at my PR and give some feedback. Do you think those changes are enough or should we add more explanation there?
Thank you @Wasabi375 I think these changes are enough to avoid noticed confusion.
@Wasabi375 After we changed the target page title in the merge request #1931, I noticed that we forgot to change titles of the links to that page.
Now I created PR for that: Fix link titles referring to the "Properties" page by yvolk · Pull Request #2012 · JetBrains/kotlin-web-site · GitHub