Keeping the tail on the ground helps during takeoff and landing, wheel or skid. When you run out of rudder authority on landing, or raise the tail before you have good rudder authority on takeoff, is how groundloops happen. Your skid acts much like a locked tailwheel on a full-size. This is a good example of full-scale ops informing our RC activity.
One thing people forget is the double whammy of P-factor, gyroscopic precession, and a tailwheel. If you raise the tail too soon on takeoff, P-factor yaws the plane left in proportion to the speed of the attitude change (it's like pushing from the rear on the right side of the prop disc) and, if you don't have enough rudder authority, you're going into the weeds (or the pits!). It's hardly a concern on landing, as the torque is reduced and the rudder and fin are already flying. Sudden power changes or gusts during landing can upset that apple cart on landing still, so fly it until it's parked.