Spur of the moment idea, not thought through, and most likely the worst idea I suggested.
Idea: Trading items across Cores.
Leave the Hell No & BS comments for later, because you will want to express it more, especially for those that can not do this.
Both the Trader and Buyer has to have characters on BOTH cores. No Exception (this relates that they can have a Market place for both cores.)
Conversion Fee (I have not worked this out, however further removing forum gold is a benefit for Creator).
There are also a few other things to take into consideration.
#1: Converting items for Personal Use?
#2: Converting items for trade?
Personal use will undoubtedly abuse the game if the fee was 0.5 per 1 forum gold. However trading it could be viable based on the Trade price agreed upon, so that would mean that the Market Fee is doubled. 1/10 etc.
Conclusion, when converting an item, there is a fee... the fee could be 1 fg per tier, +1 fg per Magical quality (Magical, Rare, Mystical etc) ... so to convert a Tier III Mythical Axe fee would be 8 forum gold. Now that is cheap for Personal use.
So another addition could be. Converting Softcore items to Hardcore is 3 times the fee of 1 forum gold per Tier and Magical modifiers, thus the Tier III Mythical Axe would be 24 forum gold for personal use & also trading (buyers discretion etc).
When converting an item, it does NOT go on a mule, it goes into the Marketplace as an item to sell with a 0* price for the core it is converted to, also it is not included as a Trade item yet, hence the red *, it has to be removed to a character manually.
Now, another problem, this means you can trade between cores, so if a Hardcore player sees an item on SC selling at 8k forum gold and bins it and requests it to be converted to hardcore, the trader can opt for an additional Fee (not subjected to converting item) ... he/she could ask for another 500 or 1k fg ... again leaving it for players discretion in trades etc.
I know, there is a ton of shit to work out, also coding may make it impossible, however, if I can see SC players completing a Master Quest, this maybe able to happen.