Just wanted to say how nice it was to add presentation rules a few years back.
Besides hiding fields when a form is shown, I like the ability to REQUIRE a field even though its not defined in the BO as REQUIRED.
I have some fields which are usually empty - so they cannot be set to Required.
But in a case where I click a button which pops up a Form with these fields on it, Presentation Rules can set them Required (because thats why someone clicked on the button - to record some additional info). This is very helpful in some use cases.
Its unfortunate that Presentation Rules are not available on REFERENCE FIELDS (at least not in 8.8).
And it would also be nice if these could be dynamically evaluated - but when it first came out we realized its only when the form is drawn (or refreshed).