Lately I've seen a lot of small edits here on Meta to posts that are obsolete -- for example, past Winterbashes, site functionality that has since been changed, and bugs that were status-completed years ago. I've even approved a couple of those edits without noticing the age of the post. The posts then get bumped and sometimes pick up new answers and comments, presumably from other people who didn't notice that the issue being talked about isn't relevant now.
Is this a problem? Should we apply any friction to editing and/or reviewing? I wouldn't want to prevent edits (we do want to continue to maintain our content), but maybe the combination of a small edit (e.g. typos) and probable obsolescence could add a notice to the edit and review pages? Just something like "This is an old post (or resolved issue); are these small edits worth bumping this post for everybody to see again?". (Not those exact words; "bumping" is possibly jargon.)
This is a discussion, not a feature request. I don't know if all these bumps are actually a problem, hence the question. Several sites on the network are approaching (or already past) being a decade old; there are a lot of old posts out there, and apparently some people like to look for and fix typos, "thanks"s, and the like.