Well, sure. How many of your have found yourselves thumbing across the screen faster and faster, waiting to light on a key word that meant the action picked up again? Just because we don't care about wasting paper anymore doesn't mean we can waste reader's time.
80,000 – 89,999: Totally cool
90,000 – 99,999: Generally safe
70,000 – 79,999: Might be too short; probably all right
100,000 – 109,999: Might be too long; probably all right
Below 70,000: Too short
110,000 or above Too long