Simple solution to RMT.

[Triangle]

This wouldn't solve anything. Instead of selling and buying people would just trade items. the items themselves would be put up for RMT instead of the plat.

On my server people mistrusted plat for a long while and refused to sell big items, but traded them instead.

Secondly, the people who do have large amounts of plat would just transfer it around ahead of time to new accounts. If they weren't given notice then the people who didn't change their plat over to items would be arbitrarily penalized for not doing so (there are people who have vast amounts of platinum that is invested in items/accounts who would not be penalized, this is why its arbitrary).