Just make a new shard and copy characters there NAKED (no items, no currency), offer refunds for Zen buyers at that server. Merge the 'old' (exploited) servers and they will die alone or economy may stabilize after some time. Wiping is non sense.
There is no need to wipe, why is people obsessed with that word. The best compromise is: 1) Merge all the current servers into one. 2) Create two new shards and do NOT allow any transfers whatsoever from old merged shard to new shard. 3) Offer Zen buyers (with real money) a refund of what they bought, only redeemable in…
My only problem with all this situation is the whole 'BETA' thing and the misguiding and loose usage of the term but nowadays gaming studios. If this was released, I wouldn't have a problem with the action (obviously). But is morally reproachable gaming companies use BETA label to get by with unfinished products and buggy…