Ban Warning
Yostar has issued a wave of bans and suspensions to players found using cheats, plug-ins, and third party software to modify in-game data. The number of accounts or players that were punished was not provided. This wave was probably due largely to players using macros to automate the farming of 1-7 during the recent Lucky Drop campaign. An example of a player affected by this can be seen here.
(I hope this person is ok. If you are reading this, there is support and help if you need it.)
Common Questions:
Q: How can I find out what is bannable and not?
A: Yostar's Terms of Service can be found here.
Q: Is using an emulator a bannable offense?
A: No.
Q: Is using macros for farming a bannable offense?
A: Yes.
Q: Is using macro functionality that is built into an officially supported emulator a bannable offense?
A: Yes. The emulator is fine to use to play the game, but not the macro/auto-clicker functions, even if it is a built-in function of a supported emulator.
Q: Is having a second account (aka clue slave) a bannable offense?
A: Technically, yes, though personally I have doubts that they would ban you for a few extra accounts. Most likely their concerns are mass account creators who intend to sell. But keep in mind, it is technically bannable.