Older players of the Korean version will remember the days before jumping in Mabinogi. It was added two years ago and brought it’s own share of bugs. Of course many people would continue to exploit them, that’s how it goes with games!
Some games benefit from bugs, GunZ is a perfect example and a personal favourite. In this case the developers disagree, it’s being patched out so things like certain boss fights will go more as intended.
I can’t blame them for wanting to take it out. I’m always one for trying to find bugs in games, but it doesn’t always benefit the game to keep them in. It will be interesting to see how many people quit after the bugs are gone, I don’t think it will hurt the Mabinogi player population much.