Okay, my time to complain: this limitation of letting only givers to participate might be well intended, but I believe that it will stimulate some people to join raffles with games they don't want just to have something to give when the opportunity arrives, or they might even put up raffles with false or even already activated keys, like "oops, my bad! I thought that It was still good". I'm not saying that people who did that actually did that with this intention; mistakes are made, people forget stuff and that's fine, but it's a possibility, you know...