If you find an abuse hole in game, you can either report it or choose to abuse it. Reporting it will earn you something, whereas abusing it will likely to get you removed. Hence, Bayne, Melvin, Zyngie, Asmotyst, Saraoph, Erika, Jacobe and his main char Rekaep were removed for cheating. Have a nice day.
Two characters from the same IP is suspicious. When one (let's call him Micke) logs in just long enough to transfer money to the other (let's call him Thechosen), it looks very bad. When they confess to multiplaying on open channels, well, that's just stupid. And you get removed. Plus we get to keep your bank account.
Sometimes, by being clever and thinking outside the box, you find an unusual bug or loophole that should be addressed. Something along the lines of "you can log in as a guest and hire tiger missions". If you report such bugs to a wizard or arch, you will probably get tps for it. If you don't, that's abusing a bug, and you get appropriate punishment (such as removal, in the case of multiplaying). In a related story, Atomska won't be joining us for the forseeable future. Have a nice day.