I've reported a few threads lately, all of which were pretty similar in nature: questions the OP asks and then NEVER responds to, and despite the thread being many months old, people are still fruitlessly engaging. for example: Home repair (posted in February, zero OP engagement since, still getting bumped) I propose some sort of non-intrusive reminder for would-be commenters who are composing their reply: something that surfaces the age of the thread in or around the reply textbox fields. It could come in the form of placeholder text in the reply text field or it could be a small footer message below the text field. Whichever, the message would be something like "This thread is 252 day(s) old." It's not an aggressive action like auto-locking threads, nor annoying validation pop-ups to add friction to posting. Just a subtle reminder that the thread is old in hopes that a user might realize the thread is dead, and provide meaningful engagement elsewhere.