Not only being kept, but being heavily reinforced. It's sad that for all the talk from in this thread about this being an innocent mistake, the Libero players have kept deathly quiet on the idea of disbanding the Summerdale milita they gained. Judging purely off ingame actions, Orris and co have every intent to use it to thier gain.
Kind of pisses on the social contract:
We expect you to play the game as you would play a board game with good friends, and to value fair play above any victory or power.
If I was playing Monopoly with friends and it was spotted that the banker accidentally gave me an extra 500, would I say "Well, it was a mistake, but it was given to me so i'm going to keep a hold of it"? Of course not, even if the rules of the game permitted me to keep it it'd not be in the spirit of fair play to do that.
I know they're 'entitled' to play through the bug however they wish (apparently), and ultimately, unless anyone on the staff steps in we have to deal with that, but certainly I feel the actions (making full use of the gain) don't match the words (it was an innocent mistake).