[BulletOwner1]

Removing the actual hot water tank drain accomplishes more than draining the tank, especially if there is an anode attached. When I purchased my current trailer, used, I don't think the WH plug had ever been removed. That made it difficult. When it did come out the anode was basically non existent. And there was a fair amount of sediment. I bought one of those WH flush accessories for attaching to a water hose and rinsed the heck out of the tank.

So removing the plug regularly accomplishes:

Keeping the plug from locking in place.
Checking the anode periodically.
Cleaning out any debris.
And Draining any old stale smelling water out, We get a sulfur smell when we leave water in the tank for a period of time.