Thanks for searching and posting the ticket. But doesn't mean that closed tickets are already finished (by solving it or by dumping it)? Means that enhanced proxy support won't be implemented.

I don't know why jiaz wrote in his/her first comment that there will only be a proxy rotation means for every download a different proxy will be used so you don't need to wait between downloads from the same site. Technical it should also be possible to download files simultaneously from the same site. I guess the big problem about proxies is that I don't know how this sites are handling proxy requests. Do they allow it? Maybe only transparent proxies (if there is maybe a difference between a transparent proxy and a normal one on their side of the IP connection - I don't know as I'm not a network specialist). Maybe they have a black list of some well known open proxies. Or maybe they just use cookies (which should be the easiest method) to prevent multiple downloads from the same user / machine.