We already have tokens for character rerolls which can be sold in-game. If duping would have been a problem then StarVault would have removed them already. I don't see a problem for slot or subscription tokens, would be very nice to get them.
even if you duped them, each token would have a specific ID and once its used then it would be useless to have them unless your trying to scam people but then that would just get the original person with them banned so
I'am not think so, mortal is a game with a small community and chinese farmers not want to earn tokens they want to earn real money.
What prevents them from farming gold and selling for real money now.
If Mortal were a good game for this, they would already be here.
Don't worry about this all chinese farmers alredy in L2, wow, archage and EVE