UPDATE (6 Nov): We have now processed all of the offending accounts.
Our team has spent a considerable amount of time investigating, discussing, and validating each moderation action. All content received through using this exploit has been removed. If the content had been already used, we have deducted the equivalent gem amount. This may have resulted in a negative gem balance. If the player is not able to get the gem count back into positive within a specified amount of time, the account will then be suspended. There are also a number of accounts that have been permanently suspended due to clear and repeated abuse of the vulnerability.
All disciplinary actions taken are based on real evidence and various aspects have been considered when processing the accounts, including past moderation history, the severity of exploits and in-game activity. Please note that no players who tested this exploit only a few times have had their accounts suspended (but the content has been removed).
It is extremely important for us to keep the game fair for the whole Community and will not tolerate any form of cheating or exploiting of bugs. For further information on what we consider cheating, please review the following support article: Remember to play fair - don’t be a cheat!