Fair.  And I suppose some algos will bias against older content.  

The dynamics may be somewhat like clickbait.  Many well-intentioned content creators are still forced into using clickbait images and titles, because they'd have much lower viewership if they didn't.

Sometimes people are dismissive of things because of when they were written. If you want someone wanted their ideas judged purely on their content, I can see omitting any extraneous details.

Undisciplined

I'd argue that evergreen content can still include timestamps for when it was last updated, like "updated on YYYY-MM-DD", and that would never not be helpful.



SimpleStacker

Design

On hiding the creation date of internet content

It depends on the nature of the content. If someone is attempting to make something that's evergreen, I can see why they might even prefer to leave off the date.