I just realized I should have clarified about the wishlists. The wishlist in the dashboard is for recording what you want to dib for in the swap. When I mentioned that some people look at wish lists to add an extra seed or two for someone's packet at the end of the swap I was referring to the wish list thread. Many of us look there to see if we have anything to offer from people's lists, and also check there to see if someone missed out on a seed that they have an odd seed or three lying around, but not enough for another offer. If they do, they will often send those as a gift.
The thread "Wish Lists" in
3rd Annual Not From the Seed Rack Seed Swap