I’ve noticed an interesting (growing?) trend over the past few years. Some bloggers (or their designers) choose to hide when a post was written. I usually see this via dates excluded from the URL and/or the page itself. Why they’re doing this, I’m not sure.
I could not agree with this more. The date an article was published is an essential piece of metadata. Without it, how will a reader know whether the information is up to date?
I often include the current year in my search terms when I’m looking for information on the web. I want a recent article to increase the chances that what I find is accurate. If I happen upon an article and I can’t find the date it was published (or updated), I assume it’s no longer relevant.