Should there be an expiry date for posts, after which the are locked or archived?
Archiving can be a good idea, its there on reddit, and it could be a possible option that users could have, but then again most users don't even bother to lock the topics. I feel this isn't a big enough "issue" that needs to be prioritized on, but it is what it is. Your suggestion, even though it is a decent one unlike crappy "merit ruins lives" types of suggestions, is going to be ignored. Its sad, and its true.
I see this topic has already gone off-topic. Way to go fuckers.