I didn’t realize there was some dumbass SEO argument for not putting dates on posts.
There are sites I don’t visit any longer because of undated posts.
Probably relates to my field and me being picky, but if I’m reading about something in IT, it really, really matters if it was written two years ago or today. If I can’t figure that out, I won’t be visiting your IT-related site again.
I think that proclivity has spilled over into my browsing of non-IT sites.