It seems like you don't know what you are talking about. Back then (2012) it was Seal Online Eternal of Destiny and it was closed due to dup issue and a lot of cheat players abused this hax. Then last July 2013 Seal Online was relaunched and it was Seal Online Blade of Destiny. GMs are not the developers and according to that QQ increase of experience rate? where did you get that info?
Here is the Patchnotes after the maintenance
Maintenance Notes:
- Duran and Erasnets have merged!
- Tutorial Zone Updated
- Grabbit High Roller Sale begins!
- Player Appreciation Event Begins!
- Spring Cleaning Sale ended
- Bug fixes
Check Duran/Erasnets Server Merge Details for in-depth information.
It's not stated that the exp and refine rate will increase . So why expecting for those if it is not written in the patchnotes?