I get it that they're both STS games and it's technically not against the rules to trade between games (as said by a dev)...however this is going to kill the market. Credits are hard to get in SL, which I'm fine with...makes it harder to get stupid rich. However, since people are now buying mass amounts of credits with plat, they can afford these crazy high vanity prices. Those who cannot are using PL gold to their advantage. Spend gold from a game over a year old to get rare items a few weeks old...then sell them for credits to the people with lots of them.

Keep SL trading in SL, and PL trading in PL. It's not possible to stop all people from doing it...but at least make it know it's not allowed before things get out of hand.