To create a treasure land, a wandering cultivator must have a minimum of level 1 grandmaster; however, sects like Blazing inferno and Terranova would not show any interest in them. Except for treasure lands created by the peak grandmaster cultivator or an immortal cultivator, the sects would not show any interest in them.
Even though the treasure lands have treasures inside them, not everyone could enter them and casually pick those treasures.
If it was created by immortal cultivators, it would block off everyone except for those people who could meet the criteria to enter that treasure land.
And as for those treasure lands created by the cultivators below the immortal realm, they would add a self-destructive formation to self destruct the items inside the treasure land if someone forcefully enters it.
"We?"