Locking posts after some time would keep the classified section more relevant. Newer ads would get more traction. Older posts would avoid being recycled by users asking if the item was still available.
My thought is that after 30 days of inactivity, or 90 days after the post is made, the thread is locked, so new replies are not allowed. Doing so would keep newer, more active posts alive and still allow people to contact the OP via DM on older posts, lowering the signal to noise ratio.
My thought is that after 30 days of inactivity, or 90 days after the post is made, the thread is locked, so new replies are not allowed. Doing so would keep newer, more active posts alive and still allow people to contact the OP via DM on older posts, lowering the signal to noise ratio.