I think the fact lies that idling is a good way of cheating. If you sit there doing nothing, you are still earning lesson credits, thus increasing your skills.
As everyone is on monthly charging now, (or lifetime) then the possibility of earning lots of lesson credits in a very shorttime whilst dp or pw is very real.
I can fully understand why this kind of idling is dealt with harshly.
I know what you mean tho, I quite often pop onto the BB whilst I run down to the kitchen, make a cup of tea then come back.
Not to dissimilar from going to the pool or barracks for a short time whilst snacking. But I think a big difference from sitting in a river panning for gold for 5 hours without looking at your screen once.#
Comms may be boring, but as Magellan pointed out, if the rocks start talking to you, you had better respond else you will find yourself moved/un dp'd etc.
Written by my hand on the 30th of Skyelong, in the year 1008.