Hello - this official server is hosted by the studio as the official Korean servers, but it is managed not by the devs. It is in partnership with a larger korean community from my understanding.
I do not think this type of schedule will be on all official servers, but this could change in the future.
The devs will announce wipes in discord. Right now there are fewer wipes because the devs are working on balancing updates and wipes would destroy some of their experimentation, so they have not done this. Until then, we thank you for your understanding and patience.
If you would like to start a fresh build, I recommend joining a public host server, or hosting a server yourself.
Locking thread because adding server wipes has already been suggested and the devs are aware of this.