Anchoring question

[Hillcountry]

Originally Posted by Dave R

If you have properly-sized and selected ground tackle in good shape, and use it properly, you should be able to leave the boat unattended indefinitely as long as the weather does not get crazy.

I set my anchor properly last night and slept soundly aboard my boat with no worries. The anchor never moved.

I have read numerous times that "you can't anchor overnight" (even in this thread)
I'm sure there are cases where you CAN do it and I'm curious what the conditions are that allow you to indeed, anchor overnight.
This is just a question about how you do it when the law says uh-uh?
Please enlighten...😜