In most (if not all) MMOs that I have played, which is a lot... and actually cared about, which is much fewer, they all have something that differs from Blade and Soul (other than a far superior crafting system) and it might help maintain the Marketplace a bit more and limit bot blade and soul gold income to some degree. On the in game Marketplace (not the Cash Shop), implement the ability to see not only the sellers name, but also the account name associated with the seller. Now with any idea being randomly thrown out we have positives and negatives to think about.
Pros:

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If the bots post to the market place using a character that looks like someone smashed their face on a keyboard and missed most if not all the vowels somehow.

If the bots post to the market place using an account that looks like someone smashed their face on a keyboard and missed most if not all the vowels somehow.

You can easily know who just undercut you by 1 Copper/Silver.

You can look up and contact a seller on the marketplace.

Will help players notice trends (like if every other day constantly a certain character/account posts an extreme number of Soulstones for sell undercutting by a small amount).

Many of those MMOs that I have played (and had this system implemented) were Free to Play just like this one, and had much less bots/hackers polluting the actual players precious in game air and environment. I guess the big questions to ask yourself is: Would you be willing to cooperate with other actual players if something like this was implemented (it shouldn't be too hard to implement)? Would you still buy Soulstones or other mats from "players" knowing (or having a strong suspicion) that they are bots, due to their name or the account name when you buy them?

Noting the topics posted on this forum it is safe to say that at least 99% of people here detest bots/hackers and we (the actual players) would have a small amount of power against this if this got implemented other than just reporting them (which according to many reports does nothing). It is a small step towards potentially combating bots/hackers, but if enough people are willing to cooperate or think that it is a good plan it could be helpful in the long run.

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