The question
When a page needs a substance refresh to recover visibility.
A valuable page is decaying and you are deciding whether to refresh it.
Why it matters
Refreshing is easy to over- or under-do; the question is whether this page will actually recover from a refresh.
How to decide
IfIt is decaying and the topic has genuinely moved on
ThenYes - refresh with real new substance.
IfIt is losing to a stronger competitor page
ThenYes, but out-do the competitor, not just re-date.
IfThe decline is technical, not content
ThenNo - fix the technical cause first.