Yes a wipe is fair

Some of the bugs encoutered up until now authorised
- Unlimited money
- Huge amount of PPs for a single fight
- levelling at a fast rate without training (was removed fairly soon but still)
All of those bugs make it so that you have some pretty buffed up chars out there and it would not be fair to the other players to set the stabilised version of the game with those advantages given.
You are talking about another way but how do you make the difference between a player who worked for what he has and one who got it through bugs weather on purpose or not.
btw this thread is really not supposed to be here as it is not bug related.