Give me a reasonable explanation. Why did the administrator tear down my beautiful castle?

I built the castle for several months, and the administrator demolished it for me in an instant. Why? Give me a reasonable explanation.
Asian server 1333

They have a forum post explaining land claim abuse cases. There is many reasons why they delete builds. Some of the most common reasons are :
-Your build causes noticeable fps drops or server strain.
-Your build blocked important resources or lore objects.
-You spammed decorative buildings to extend claim around your base.