Until recently (say, one month), resolved topics on a board display only the title, and the number of replies, but replies were hidden. Clicking on the number of replies expanded the replies. There was no way to reply to a resolved topic unless the topic was reopened, which usually makes sense.
Now there's a reply box on resolved topics, while replies are hidden. This does not make sense to me, because I don't see the purpose of replying to messages that are not visible, without reading them before. The reply box shouldn't appear if the other messages are hidden