User blog comment:GrimFuture7/How to Improve Transformers Legends, by DeNA (pt. 2)/@comment-65.96.212.168-20130612184126/@comment-10688232-20130613213322

They could monatize the trading event, making it cost something to complete the trade. $1 for trading r3's, $3 for trading regular R4's, $5 for trading Episode R4s. Where they charge both parties to complete the trade. That would probably eliminate the 2nd account issues, and also allow Mobage to continue to bend its player base over at every opportunity.