As for the deathkitten issue: I'm slowly beginning to wonder if a permaban is the only reasonable solution.
Perhaps... a formal warning from one of the admins wouldn't go amiss and... I suppose a (forum) ban might be the only thing left to do in the end.
I would prefer that too, though I dislike deathkitten. It's hard to like someone who's barely participated in a community at all over the last 4 years and then comes in and demands that everything work like she wants it to. Still I don't like overly harsh reactions you from various forums around the net and GOG is largely devoid of that (which is why it's such a pleasant place, we can make of it what we want) and I wouldn't want to see that as a first or even second response to anyone, even deathkitten.
On topic, OP, you obviously have some drive in this arena. Why don't you work on improving whichever downloader has the best initial feature set? I think it's cool as hell people do this. I get home from work and the last thing I want to do is program. I wish that wasn't the case, I used to really like doing it.