Except to get some unupped SoDs before 1.29 came in, I've never used this exploit, and haven't needed to. I do like EvaRia's suggestions; that would slow pvp farming enough that people might decide to actually go out and earn their rares instead :p
I also agree with EvaRia's point that there isn't any incentive to randomly pvp. 99% of the players that I've seen there are newbies, and in pvp2, they usually still have no upgrades or very few. Also, the long delay in both pvp1 and pvp2 waiting for someone else is quite discouraging, even if I knew for sure that a good player was on the other end.
Perhaps if score/electrum rewards for random pvp were increased, people might gain an incentive to play it more. Right now, the rewards (from nonfarms) are absolutely pitiful, comparable to ai2/3, except with slower games due to human response times.
Probably the best solution for pvp is to remove the card spins altogether and just increase the score/electrum rewards for winning.