Disconnect and delevel

What are you doing there, totally crazy? We found a map with a lot of experience. We walked there for a long time. We loaded the best tabs there for the experience and we passed it, getting a level. But you rolled back the servers and our experience rolled back to a minus level and another half of the level of experience. I understand that such measures are caused by something extraordinary, but delevel - this is already piggish! Please don't do that anymore!