Another feature which should be added: when replying, Usenapp should choose the best server for posting based on the group you were reading when you clicked compose/reply.
Example: right now I have two news servers configured for downloading & posting, let's say A and B. Some groups exist on server A, but not on server B, and vice versa. When replying or composing a message, the last server I used for posting is set (the upper left combo box). I need to pay attention that the group I'm posting to exists on the chosen server and switch the posting servers manually, which can become tedious.