Mabinogi was ridden with channel crashes which cause the loss of items to be a common occurrence, glitches that literally made characters inaccessible for months, and there was a period of over 2 months when the friend/guild communication system was completely down.
Not to mention dupers, and hackers who were able to crash channels, buy items without paying or even make people's items disappear.
Although most of the hacking that were going on has died down and NexonNA probably gave compensation to a lot of people, but the items don't come with the same enchants/colors. And there are still some people that haven't got theirs, myself included.
The game is pretty good if you're lucky enough to not encounter any problems.