Grog XD anyone?

;)

My money is on backend overrides of anti-spez collaborations.

I've been having slow upload with Deluge 2.1, but I always attributed that to my new vpn provider potentially throttling certain traffic. It didn't quite occur to me that a Deluge configuration could be a culprit as it cooperated in the past.

To your knowledge, does Deluge use any uncommon network ports for torrent upload? I'll have to look into this in any case.