Probably just recently discovered the way to light the running lights and the novelty of it has not worn off yet (newbie!). I don't understand why folks leave any lights on outside after dark and they are not even at the campsite. Saw a host camper, campsite, a few weeks ago. We were there Thursday night through the rest of the week-end. They had really bright patio lights strung through their space (not even hanging on the awning ... strung out on posts). No one ever showed up. Lights were on either a timer or a dusk-to-dawn sensor. Came on late evening, and didn't shut off till morning. I call that "night pollution". Too bad the light were not on during the day and off at night!
I dun-no?? People just want to be different and think they are re-inventing the wheel. When you get older ... been there ... done that ... it seems really stupid, some of the things folks do. But ... each one has to learn for themselves. Meanwhile us old farts just shake our heads at stupidity. You can't explain anything to them, they look at you like you loosing your mind, so what's the point of even trying!
And the other reason is so some folks will get attention, thinking they are razzling and dazzling everyone around them. Yea, they razzle and dazzle me all right! I won't say how though. I'm too stinking old now ... who cares any more. To each his own.