While sending out some one-way trades earlier I discovered that any text in the "wants" box appears with the one-way transfer. I feel like this can't be intended behavior since you can't exactly get something back in a transfer! You don't even see the wants box when setting up a transfer. I found that you can get around this by first selecting a two-way trade, clearing the wants box, and then changing it to a transfer, but that seems like a lot of extra steps for something that shouldn't display