Maybe I've just noticed it more (or gotten suckered in more than usual!), but I'm noticing more old (>1 year) threads being picked up with answers or commentary that really aren't relevant anymore. In a way, this is a positive sign, because it means somebody is using search, but still... Is there a way to tag/flag/highlight threads to indicate they are above a certain age? Something like the example below, or even a warning when replying? Just a thought.